WO2018119914A1 - Brake energy feedback method and feedback system for electric vehicle, and vehicle - Google Patents
Brake energy feedback method and feedback system for electric vehicle, and vehicle Download PDFInfo
- Publication number
- WO2018119914A1 WO2018119914A1 PCT/CN2016/113121 CN2016113121W WO2018119914A1 WO 2018119914 A1 WO2018119914 A1 WO 2018119914A1 CN 2016113121 W CN2016113121 W CN 2016113121W WO 2018119914 A1 WO2018119914 A1 WO 2018119914A1
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- WIPO (PCT)
- Prior art keywords
- power
- braking energy
- air conditioning
- conditioning system
- vehicle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
Definitions
- the present invention relates to the field of electric vehicles, and in particular to a braking energy feedback method, a feedback system and a vehicle for an electric vehicle.
- braking In the braking condition of a car running on a long downhill slope, braking is required to maintain the vehicle speed in a reasonable range.
- the engine braking is usually used to achieve the braking effect; for electric vehicles, the braking energy feedback is usually used to simulate the engine braking.
- the power component in an electric vehicle is a drive motor that can operate as an electric motor or generator.
- the driving motor can be used as the working characteristic of the generator, and part of the kinetic energy of the electric vehicle can be recovered to realize the braking energy feedback function of the electric vehicle, thereby realizing the simulation of the engine system by using the braking energy feedback. move.
- the energy stored in the power battery is limited. If the braking energy is forcibly stored, the power battery of the electric vehicle is easily damaged; if it is not stored, the use of the mechanical brake may cause damage to the brake disk and reduce the safety of driving.
- the invention provides a braking energy feedback method, a feedback system and a vehicle for an electric vehicle, so as to solve the problem that the braking energy feedback function in the electric vehicle of the prior art easily causes damage to the power system or damage of the brake disc.
- the present invention provides a braking energy feedback method for an electric vehicle, which includes detecting whether a power battery of the electric vehicle satisfies a braking energy receiving condition; if the braking energy receiving condition is satisfied, driving the electric vehicle The braking energy generated by the motor is fed back to the power battery; if the braking energy receiving condition is not met, the braking energy is fed back to the electric device of the electric vehicle.
- step of detecting whether the power battery of the electric vehicle meets the braking energy receiving condition further comprising: detecting whether the opening degree of the accelerator pedal of the electric vehicle is less than or equal to a preset first opening threshold, or detecting the braking of the electric vehicle Whether the opening degree of the pedal is greater than or equal to a preset second opening degree threshold; if the opening degree of the accelerator pedal is less than or equal to the first opening degree threshold or the opening degree of the brake pedal is greater than or equal to the second opening degree threshold, further detecting the electric motor Whether the vehicle speed of the vehicle is greater than or equal to a preset speed threshold; if the vehicle speed of the electric vehicle is greater than or equal to the speed threshold, the braking energy feedback system of the electric vehicle is started, and detecting whether the power battery of the electric vehicle meets the braking energy receiving condition A step of.
- the step of detecting whether the power battery meets the braking energy receiving condition comprises: detecting whether the power of the power battery is less than or equal to a preset power threshold; and if the power of the power battery is less than or equal to the power threshold, satisfying the braking energy receiving condition; If the power of the power battery is greater than the power threshold, the braking energy receiving condition is not satisfied.
- the step of providing the braking energy to the powered device includes: adjusting the power of the powered device according to the power of the braking energy, wherein the greater the power of the braking energy, the greater the power of the adjusted powered device.
- the step of adjusting the power of the electrical device according to the power of the braking energy comprises: adjusting the power of the powered device to a power equal to or greater than the braking energy.
- the electric device is an air conditioning system
- the step of adjusting the power of the electric device according to the power of the braking energy comprises: detecting whether the air conditioning system is activated; if the air conditioning system is not activated, controlling the fan of the air conditioning system to remain closed, and Turn on the cooling or heating components of the air conditioning system.
- the electric equipment is an air conditioning system
- the step of adjusting the power of the electric equipment according to the power of the braking energy comprises: if the air conditioning system has been activated, detecting whether the air conditioning system is in a cooling state or a heating state; if in the cooling state, starting The heating component of the air conditioning system and the power of the cooling component of the air conditioning system; if it is in the heating state, the refrigeration component of the air conditioning system is activated, and the power of the heating component of the air conditioning system is raised, thereby satisfying the user set temperature requirement In the case of using the air conditioning system to consume braking energy.
- the present invention also provides a braking energy feedback system for an electric vehicle, characterized in that the system comprises a first sensor, a controller and a feedback switching system, and the first sensor is used for detecting the power battery of the electric vehicle.
- the controller determines whether the power battery meets the braking energy receiving condition according to the power of the power battery. If the braking energy receiving condition is met, the control feedback switching system returns the braking energy generated by the driving motor of the electric vehicle to the power battery. If the braking energy receiving condition is not satisfied, the control feedback switching system feeds back the braking energy to the electric device of the electric vehicle.
- the system further includes a second sensor for detecting an opening degree of the accelerator pedal of the electric vehicle or an opening degree of the brake pedal of the electric vehicle, and a third sensor for detecting the vehicle speed of the electric vehicle; Determining whether the opening degree of the accelerator pedal of the electric vehicle is less than or equal to a preset first opening threshold, or determining whether the opening degree of the brake pedal of the electric vehicle is greater than or equal to a preset second opening threshold; if the accelerator pedal If the opening degree is less than or equal to the first opening degree threshold or the opening degree of the brake pedal is greater than or equal to the second opening degree threshold, the controller further determines whether the vehicle speed of the electric vehicle is greater than or equal to a preset speed threshold; if the vehicle speed of the electric vehicle is greater than Or equal to the speed threshold, the braking energy feedback function of the electric vehicle is started, and whether the power battery meets the braking energy receiving condition is determined according to the power of the power battery.
- the controller determines whether the power of the power battery is less than or equal to a preset power threshold; if the power of the power battery is less than or equal to the power threshold, determining that the braking energy receiving condition is satisfied; if the power of the power battery is greater than the power threshold, then Meet the braking energy receiving conditions.
- the controller adjusts the power of the electric device according to the power of the braking energy, wherein the power of the braking energy is larger, and the adjusted electric device is used. The greater the power.
- the controller adjusts the power of the powered device to a power equal to or greater than the braking energy.
- the electric equipment is an air conditioning system
- the controller controls the fan of the air conditioning system to remain closed, and turns on the cooling component or the heating component of the air conditioning system.
- the controller when the air conditioning system is in a cooling state, the controller activates the heating component of the air conditioning system and increases the power of the cooling component of the air conditioning system; when the air conditioning system is in the heating state, the controller activates the cooling component of the air conditioning system, The power of the heating element of the air conditioning system is increased, and the braking energy is consumed by the air conditioning system when the set temperature requirement is met.
- the present invention further provides a vehicle including a vehicle body, a drive motor, a power battery, a power consumption device, and a brake energy feedback system
- the brake energy feedback system includes a first sensor, a controller, and a feedback switch
- the first sensor is used to detect the power of the power battery
- the controller determines whether the power battery meets the braking energy receiving condition according to the power battery level. If the braking energy receiving condition is met, the control feedback switching system will drive the braking generated by the motor. The energy is fed back to the power battery. If the braking energy receiving condition is not met, the control feedback switching system feeds back the braking energy to the powered device.
- the braking energy feedback system further comprises a second sensor for detecting an opening degree of the accelerator pedal of the vehicle or an opening degree of the brake pedal of the vehicle, and a third sensor for detecting the vehicle speed of the vehicle;
- the controller determines whether the opening degree of the accelerator pedal of the vehicle is less than or equal to a preset first opening threshold, or determines whether the opening degree of the brake pedal of the vehicle is greater than or equal to a preset second opening threshold; if the accelerator pedal is opened If the degree is less than or equal to the first opening threshold or the opening of the brake pedal is greater than or equal to the second opening threshold, the controller further determines whether the vehicle speed of the vehicle is greater than or equal to a preset speed threshold; if the vehicle speed is greater than or equal to the speed The threshold value starts the braking energy feedback function of the vehicle, and determines whether the power battery satisfies the braking energy receiving condition according to the power quantity of the power battery.
- the controller determines whether the power of the power battery is less than or equal to a preset power threshold; if the power of the power battery is less than or equal to the power threshold, determining that the braking energy receiving condition is satisfied; if the power of the power battery is greater than the power threshold, then Meet the braking energy receiving conditions.
- the controller adjusts the power of the electric device according to the power of the braking energy, wherein the power of the braking energy is larger, and the adjusted electric device is used. The greater the power.
- the controller adjusts the power of the powered device to a power equal to or greater than the braking energy.
- the electric equipment is an air conditioning system
- the controller controls the fan of the air conditioning system to remain closed, and turns on the cooling component or the heating component of the air conditioning system, when the air conditioning system is in a cooling state,
- the controller activates the heating component of the air conditioning system and increases the power of the refrigeration component of the air conditioning system; when the air conditioning system is in the heating state, the controller activates the cooling component of the air conditioning system and increases the power of the heating component of the air conditioning system.
- the braking energy is consumed by the air conditioning system when the user set temperature requirement is met.
- the braking energy feedback method of the electric vehicle of the present invention firstly, it is detected whether the power battery of the electric vehicle meets the braking energy receiving condition, and the detecting step can understand the energy storage space of the power battery to prevent the power battery from forcibly receiving the braking energy.
- the electric vehicle power system is damaged. If it is detected that the power battery satisfies the braking energy receiving condition, the braking energy generated by the driving electrode of the electric vehicle is fed back to the power battery. If it is not satisfied, the braking energy is fed back to the electric equipment of the electric vehicle, that is, when the power battery cannot realize the braking energy feedback, the braking energy can be consumed by the electric equipment, so as to avoid the electric vehicle passing the mechanical braking manner. Brake disc damage caused by braking.
- the electric vehicle when the power battery cannot receive the braking energy, the electric vehicle can dissipate the braking energy through the electric device to realize the braking energy feedback function without using the mechanical brake. Improve the safety of driving.
- FIG. 1 is a schematic flow chart of an embodiment of a braking energy feedback method for an electric vehicle according to the present invention
- FIG. 2 is a schematic flow chart of adjusting power of an air conditioning system in an embodiment of the braking energy feedback method shown in FIG. 1;
- FIG. 3 is a schematic structural view of an embodiment of a braking energy feedback system for an electric vehicle according to the present invention.
- FIG. 4 is a schematic structural view of an embodiment of a vehicle according to the present invention.
- FIG. 5 is a schematic structural view of an air conditioning system in an embodiment of the vehicle shown in FIG. 4.
- FIG. 5 is a schematic structural view of an air conditioning system in an embodiment of the vehicle shown in FIG. 4.
- the electric vehicle is in a braking condition when driving downhill, and it is necessary to turn on the braking energy feedback function to achieve braking.
- the electric vehicle performs braking energy feedback, it detects whether the power battery of the electric vehicle meets the braking energy receiving condition, and if the receiving condition is satisfied, the braking energy generated by the driving motor of the electric vehicle is fed back to the power battery; if the receiving is not satisfied Condition, the braking energy is fed back to the air conditioning system of the electric vehicle.
- FIG. 1 is a schematic flow chart of an embodiment of a braking energy feedback method for an electric vehicle according to the present invention.
- the braking energy feedback method of the present embodiment includes the following steps.
- step S11 whether or not to activate the braking energy feedback function of the electric vehicle is determined based on the opening degree of the accelerator pedal or the brake pedal and the vehicle speed, that is, the above two steps S11 and S12 are used to determine whether or not to activate the braking energy feedback function. Specifically, when it is detected in step S11 that the opening degree of the accelerator pedal is less than or equal to the first opening degree threshold or the opening degree of the brake pedal is greater than or equal to the second opening degree threshold, step S12 is performed to detect whether the vehicle speed of the electric vehicle is greater than or equal to Or equal to the preset speed threshold. If it is greater than or equal to the speed threshold, the braking energy feedback system is started, and step S13 is performed; if it is less than the speed threshold, it is considered that braking energy feedback is not needed.
- S13 Start the braking energy feedback function, and detect whether the power battery of the electric vehicle meets the braking energy receiving condition.
- step S13 it is detected whether the power of the power battery is less than or equal to a preset power threshold. If the power of the power battery is less than or equal to the power threshold, the power battery is also considered to store a certain amount of power, that is, the brake is satisfied. Energy receiving conditions.
- step S14 When it is determined in this step S13 that the power battery satisfies the braking energy receiving condition, step S14 is performed; and when it is determined that the power battery does not satisfy the braking energy receiving condition, step S15 is performed.
- the power battery If the power battery satisfies the braking energy receiving condition, the braking energy generated by the electric vehicle driving motor is fed back to the power battery, and the power battery stores the excess energy.
- the braking energy generated by the driving motor of the electric vehicle is fed back to the electric device of the electric vehicle, and the excess energy is consumed by the electric device.
- the feedback mode is: the power of the electric device is adjusted according to the power of the braking energy, and the power of the electric device after the adjustment is larger as the power of the braking energy is larger.
- the power of the air conditioning system is adjusted to be equal to or greater than the power of the braking energy.
- the electric power equipment selects the high-power electric equipment with adjustable power in the electric vehicle, generally is an air-conditioning system.
- FIG. 2 is an embodiment of the braking energy feedback method shown in FIG.
- step S152 If the air conditioning system is not activated, that is, it is not necessary to adjust the temperature at this time, the process proceeds to step S152. If the air conditioning system is turned on, it proceeds to step S153.
- S152 The fan controlling the air conditioning system is kept closed, and the cooling component or the heating component of the air conditioning system is turned on.
- the step S152 corresponds to the case where the air conditioning system is not turned on. Since the temperature is not required to be adjusted at this time, the fan controlling the air conditioning system remains in the off state, and the cold air or hot air generated by the air conditioning system is not blown into the cab by the fan. And cause temperature changes. Since the air conditioning system needs to consume the braking energy, in this step S152, it is necessary to turn on the cooling component or the heating component of the air conditioning system, and adjust the power of the cooling component or the heating component to be equal to or greater than the power of the braking energy.
- step S154 After detecting that the air conditioning system is turned on, it is further determined whether the air conditioning system is in a cooling state or a heating state. If the air conditioning system is in the cooling state, step S154 is performed; if the air conditioning system is in the heating state, step S155 is performed.
- S154 Start heating components of the air conditioning system and increase the power of the cooling components of the air conditioning system.
- the step S154 corresponds to the case where the air conditioning system is in a cooling state.
- the heating component of the air conditioning system is turned on, and the power of the cooling component is increased, so that the influence of the power of the cooling component on the temperature and the influence of the heating component on the temperature can be They cancel each other out and consume the braking energy by using the heating and cooling components that are turned on.
- the braking energy is consumed by the air conditioning system while satisfying the user set temperature requirements.
- S155 Start the cooling component of the air conditioning system and increase the power of the heating component of the air conditioning system.
- the step S155 corresponds to the case where the air conditioning system is in the heating state, and the same principle as in the step S154 is performed, the refrigeration component of the air conditioning system is turned on, and the power of the heating component is raised, so that the power boosting portion of the heating component affects the temperature and The effects of the cooling components on the temperature can cancel each other out and consume the braking energy by means of the open heating and cooling components. It is realized that the braking energy is consumed by the air conditioning system while satisfying the user set temperature requirement.
- steps S152, S154, and S155 satisfy the user's requirement for the temperature in the cab, and also utilize the braking energy consumed by the air conditioning system, thereby realizing the power consumption of the braking energy generated by the driving electrode to the electric vehicle described in step S15. device.
- the braking energy feedback method of the present embodiment enables the electric vehicle to realize the braking energy feedback function by the power battery storage or the air conditioning system dissipating in the braking condition during long downhill driving to meet the long downhill driving time.
- Braking demand specifically when the power battery is high, the braking energy does not need to enter the power battery, and does not need to use mechanical braking, but is dissipated by the electric equipment to realize the braking energy feedback function, so that the electric vehicle The speed of the vehicle is maintained at a reasonable interval to improve the safety of driving.
- FIG. 3 is a schematic structural diagram of an embodiment of a braking energy feedback system for an electric vehicle according to the present invention.
- the brake energy feedback system 100 of the present embodiment includes a first sensor 11, a second sensor 12, a third sensor 13, a controller 14, and a feedback switching system 15.
- the first sensor 11 is used to detect the power of the power battery of the electric vehicle.
- the controller 14 determines whether the power battery meets the braking energy receiving condition according to the amount of power detected by the first sensor 11; if satisfied, the control feedback switching system 15 returns the braking energy generated by the driving motor of the electric vehicle to the power battery; If satisfied, the control feedback switching system 15 feeds back the braking energy to the powered device of the electric vehicle.
- the braking energy feedback system 100 further includes a second sensor 12 and a third sensor 13, second
- the sensor 12 is for detecting the opening degree of the accelerator pedal of the electric vehicle or the opening degree of the brake pedal of the electric vehicle
- the third sensor 13 is for detecting the vehicle speed of the electric vehicle.
- the controller 14 determines whether the opening degree of the accelerator pedal of the electric vehicle is less than or equal to a preset first opening threshold according to the detection result of the second sensor 12; or determines whether the opening degree of the brake pedal of the electric vehicle is greater than or equal to a preset number Two opening threshold. If the opening degree of the accelerator pedal is less than or equal to the first opening degree threshold; or the opening degree of the brake pedal is greater than or equal to the second opening degree threshold; the controller 14 further determines whether the vehicle speed of the electric vehicle is greater than or based on the detection result of the third sensor 13 Equal to the preset speed threshold, if the vehicle speed of the electric vehicle is greater than or equal to the speed threshold, the controller 14 activates the braking energy feedback function of the electric vehicle.
- the controller 14 determines whether the power battery meets the braking energy receiving condition according to the power battery power detected by the first sensor 11 when starting the braking energy feedback function of the electric vehicle. .
- the controller 14 adjusts the power of the electric device according to the power of the braking energy, wherein the adjusted power of the braking energy is larger, and the adjusted The power of the powered device is greater. Generally, the controller 14 adjusts the power of the powered device to a power equal to or greater than the braking energy.
- the air conditioning system is selected as the electric equipment, corresponding to the above steps S151-S155, when the air conditioning system is not activated, the controller 14 controls the fan of the air conditioning system to remain closed, and opens the refrigeration component or system of the air conditioning system. a hot component; when the air conditioning system is in a cooling state, the controller 14 activates the heating component of the air conditioning system and boosts the power of the refrigeration component of the air conditioning system; when the air conditioning system is in the heating state, the controller 14 activates the refrigeration component of the air conditioning system And the power of the heating element of the air conditioning system is increased, and the braking energy is consumed by the air conditioning system while satisfying the user set temperature requirement.
- the brake energy feedback function can be realized by the power battery storage or the air conditioning system dissipating in the braking condition during the long downhill driving, thereby improving the safety of driving.
- FIG. 4 is a schematic structural diagram of an embodiment of an electric vehicle according to the present invention.
- the vehicle 200 of the present embodiment includes a driving motor 21, a power battery 22, and a power generating device 23, The dynamic energy feedback system 24 and the vehicle body 25.
- the vehicle 200 can be a pure electric vehicle or a hybrid electric vehicle.
- the brake energy feedback system 24 is similar to the brake energy feedback system 100 described above, having a first sensor 241, a second sensor 242, a third sensor 243, a controller 244, and a feedback switching system 245.
- the first sensor 241 is configured to detect the power of the power battery 22, and the controller 244 determines whether the power battery 22 satisfies the braking energy receiving condition according to the power of the power battery 22. If the braking energy receiving condition is met, the feedback switching system is controlled. 245 feeds back the braking energy generated by the driving motor 21 to the power battery 22. If the braking energy receiving condition is not satisfied, the control feedback switching system 245 returns the braking energy to the powered device 23.
- the second sensor 242 is used to detect the opening degree of the accelerator pedal of the vehicle 200 or the opening degree of the brake pedal of the vehicle 200
- the third sensor 243 is used to detect the vehicle speed of the vehicle 200.
- the controller 244 determines whether the opening degree of the accelerator pedal of the vehicle 200 is less than or equal to a preset first opening threshold, or determines whether the opening degree of the brake pedal of the vehicle 200 is greater than or equal to a preset second opening threshold, if the throttle If the opening degree of the pedal is less than or equal to the first opening threshold or the opening degree of the brake pedal is greater than or equal to the second opening threshold, the controller 244 further determines whether the vehicle speed of the vehicle 200 is greater than or equal to a preset speed threshold, if the vehicle 200 If the vehicle speed is greater than or equal to the speed threshold, the braking energy feedback function of the vehicle 200 is started, and whether the power battery 22 satisfies the braking energy receiving condition is determined according to the power of the power battery 22.
- the controller 244 determines whether the power battery 22 satisfies the braking energy receiving condition by determining whether the power of the power battery 22 is less than or equal to a preset power threshold. If the amount of power of the power battery 22 is less than or equal to the power threshold, it is determined that the braking energy receiving condition is satisfied.
- the controller 244 adjusts the power of the electric device 23 according to the power of the braking energy, wherein the electric power of the braking energy is larger, the adjusted air conditioning system The greater the power. Generally, the controller 244 adjusts the power of the powered device 23 to a power equal to or greater than the braking energy.
- FIG. 5 is a schematic structural diagram of an air conditioning system according to an embodiment of the electric vehicle shown in FIG. 4, wherein the air conditioning system 23 includes a fan 231 and compression.
- the controller 244 controls the fan of the air conditioning system 23 to remain in the closed state, and turns on the refrigeration unit of the air conditioning system 23, that is, the compressor 232 or the heating element, that is, the thermistor 233.
- the controller 244 activates the thermistor 233 which is the heating component of the air conditioning system 23, and boosts the power of the refrigeration element of the air conditioning system 23, that is, the compressor 232.
- the controller 244 activates the refrigeration unit, that is, the compressor 232 of the air conditioning system 23, and boosts the power of the thermistor 233, which is the heating element of the air conditioning system 23.
- the braking energy is consumed by the air conditioning system 23 when the user set temperature requirement is satisfied.
- the braking energy feedback function is realized by the power battery storage or the air conditioning system dissipating in the braking condition during long downhill driving, and the safety performance is good.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
A brake energy feedback method for an electric vehicle, the feedback method comprising: detecting whether a power battery of an electric vehicle meets a brake energy receiving condition; if so, then feeding brake energy generated by a driving motor of the electric vehicle back to the power battery; and if not, then feeding the brake energy back to a powered apparatus of the electric vehicle. The brake energy feedback method of the present invention prevents damage to a power system, and prevents brake disc damage caused by mechanical braking, thus improving driving safety. Also disclosed are a brake energy feedback system for an electric vehicle and vehicle.
Description
【技术领域】[Technical Field]
本发明涉及电动车领域,特别是涉及一种电动车的制动能量回馈方法、回馈***及车辆。The present invention relates to the field of electric vehicles, and in particular to a braking energy feedback method, a feedback system and a vehicle for an electric vehicle.
【背景技术】 【Background technique】
汽车在长下坡行驶时的制动工况中,需要进行制动,以使得汽车车速维持在一个合理的区间。对于传统汽车,通常利用发动机制动实现制动效果;而对于电动车,则通常利用制动能量回馈来模拟发动机制动。In the braking condition of a car running on a long downhill slope, braking is required to maintain the vehicle speed in a reasonable range. For conventional vehicles, the engine braking is usually used to achieve the braking effect; for electric vehicles, the braking energy feedback is usually used to simulate the engine braking.
电动车中的动力部件为驱动电机,可作为电动机或发电机工作。在电动车制动时,可利用驱动电机作为发电机时的工作特征,将电动车的一部分动能进行回收,以实现电动车的制动能量回馈功能,从而实现利用制动能量回馈来模拟发动机制动。然而动力电池中存储的能量有限,若强行存储所述制动能量,容易损坏电动车动力电池;若不存储,使用机械制动则容易造成制动盘损坏,降低驾驶的安全性。The power component in an electric vehicle is a drive motor that can operate as an electric motor or generator. When the electric vehicle is braked, the driving motor can be used as the working characteristic of the generator, and part of the kinetic energy of the electric vehicle can be recovered to realize the braking energy feedback function of the electric vehicle, thereby realizing the simulation of the engine system by using the braking energy feedback. move. However, the energy stored in the power battery is limited. If the braking energy is forcibly stored, the power battery of the electric vehicle is easily damaged; if it is not stored, the use of the mechanical brake may cause damage to the brake disk and reduce the safety of driving.
【发明内容】 [Summary of the Invention]
本发明提供一种电动车的制动能量回馈方法、回馈***及车辆,以解决现有技术的电动车中制动能量回馈功能容易导致动力***损坏或制动盘损坏的问题。The invention provides a braking energy feedback method, a feedback system and a vehicle for an electric vehicle, so as to solve the problem that the braking energy feedback function in the electric vehicle of the prior art easily causes damage to the power system or damage of the brake disc.
为解决上述技术问题,本发明提供一种电动车的制动能量回馈方法,其包括检测电动车的动力电池是否满足制动能量接收条件;若满足制动能量接收条件,则将电动车的驱动电机产生的制动能量回馈给动力电池;若不满足制动能量接收条件,则将制动能量回馈给电动车的用电设备。In order to solve the above technical problem, the present invention provides a braking energy feedback method for an electric vehicle, which includes detecting whether a power battery of the electric vehicle satisfies a braking energy receiving condition; if the braking energy receiving condition is satisfied, driving the electric vehicle The braking energy generated by the motor is fed back to the power battery; if the braking energy receiving condition is not met, the braking energy is fed back to the electric device of the electric vehicle.
其中,检测电动车的动力电池是否满足制动能量接收条件的步骤之前,进一步包括:检测电动车的油门踏板的开度是否小于或等于预设的第一开度阈值,或者检测电动车的刹车踏板的开度是否大于或等于预设的第二开度阈值;若油门踏板的开度小于或等于第一开度阈值或者刹车踏板的开度大于或等于第二开度阈值,则进一步检测电动车的车速是否大于或等于预设的速度阈值;若电动车的车速大于或等于速度阈值,则启动电动车的制动能量回馈***,并执行检测电动车的动力电池是否满足制动能量接收条件的步骤。Wherein, before the step of detecting whether the power battery of the electric vehicle meets the braking energy receiving condition, further comprising: detecting whether the opening degree of the accelerator pedal of the electric vehicle is less than or equal to a preset first opening threshold, or detecting the braking of the electric vehicle Whether the opening degree of the pedal is greater than or equal to a preset second opening degree threshold; if the opening degree of the accelerator pedal is less than or equal to the first opening degree threshold or the opening degree of the brake pedal is greater than or equal to the second opening degree threshold, further detecting the electric motor Whether the vehicle speed of the vehicle is greater than or equal to a preset speed threshold; if the vehicle speed of the electric vehicle is greater than or equal to the speed threshold, the braking energy feedback system of the electric vehicle is started, and detecting whether the power battery of the electric vehicle meets the braking energy receiving condition A step of.
其中,检测动力电池是否满足制动能量接收条件的步骤包括:检测动力电池的电量是否小于或等于预设的电量阈值;若动力电池的电量小于或等于电量阈值,则满足制动能量接收条件;若动力电池的电量大于电量阈值,则不满足制动能量接收条件。The step of detecting whether the power battery meets the braking energy receiving condition comprises: detecting whether the power of the power battery is less than or equal to a preset power threshold; and if the power of the power battery is less than or equal to the power threshold, satisfying the braking energy receiving condition; If the power of the power battery is greater than the power threshold, the braking energy receiving condition is not satisfied.
其中,将制动能量提供给用电设备的步骤包括:根据制动能量的功率调整用电设备的功率,其中制动能量的功率越大,调整后的用电设备的功率越大。The step of providing the braking energy to the powered device includes: adjusting the power of the powered device according to the power of the braking energy, wherein the greater the power of the braking energy, the greater the power of the adjusted powered device.
其中,根据制动能量的功率调整用电设备的功率的步骤包括:将用电设备的功率调整成等于或大于制动能量的功率。Wherein, the step of adjusting the power of the electrical device according to the power of the braking energy comprises: adjusting the power of the powered device to a power equal to or greater than the braking energy.
其中,用电设备是空调***,根据制动能量的功率调整用电设备的功率的步骤包括:检测空调***是否被启动;若空调***未被启动,则控制空调***的风扇保持关闭状态,并开启空调***的制冷部件或制热部件。Wherein, the electric device is an air conditioning system, and the step of adjusting the power of the electric device according to the power of the braking energy comprises: detecting whether the air conditioning system is activated; if the air conditioning system is not activated, controlling the fan of the air conditioning system to remain closed, and Turn on the cooling or heating components of the air conditioning system.
其中,用电设备是空调***,根据制动能量的功率调整用电设备的功率的步骤包括:若空调***已被启动,检测空调***处于制冷状态还是制热状态;若处于制冷状态,则启动空调***的制热部件,并提升空调***的制冷元件的功率;若处于制热状态,则启动空调***的制冷部件,并提升空调***的制热元件的功率,进而在满足用户设定温度要求的情况下利用空调***消耗制动能量。Wherein, the electric equipment is an air conditioning system, and the step of adjusting the power of the electric equipment according to the power of the braking energy comprises: if the air conditioning system has been activated, detecting whether the air conditioning system is in a cooling state or a heating state; if in the cooling state, starting The heating component of the air conditioning system and the power of the cooling component of the air conditioning system; if it is in the heating state, the refrigeration component of the air conditioning system is activated, and the power of the heating component of the air conditioning system is raised, thereby satisfying the user set temperature requirement In the case of using the air conditioning system to consume braking energy.
为解决上述技术问题,本发明还提供一种电动车的制动能量回馈***,其特征在于,***包括第一传感器、控制器以及回馈切换***,第一传感器用于检测电动车的动力电池的电量,控制器根据动力电池的电量判断动力电池是否满足制动能量接收条件,若满足制动能量接收条件,则控制回馈切换***将电动车的驱动电机产生的制动能量回馈给动力电池,若不满足制动能量接收条件,则控制回馈切换***将制动能量回馈给电动车的用电设备。In order to solve the above technical problem, the present invention also provides a braking energy feedback system for an electric vehicle, characterized in that the system comprises a first sensor, a controller and a feedback switching system, and the first sensor is used for detecting the power battery of the electric vehicle. The controller determines whether the power battery meets the braking energy receiving condition according to the power of the power battery. If the braking energy receiving condition is met, the control feedback switching system returns the braking energy generated by the driving motor of the electric vehicle to the power battery. If the braking energy receiving condition is not satisfied, the control feedback switching system feeds back the braking energy to the electric device of the electric vehicle.
其中,***进一步包括第二传感器和第三传感器,其中第二传感器用于检测电动车的油门踏板的开度或者电动车的刹车踏板的开度,第三传感器用于检测电动车的车速;控制器判断电动车的油门踏板的开度是否小于或等于预设的第一开度阈值,或者判断电动车的刹车踏板的开度是否大于或等于预设的第二开度阈值;若油门踏板的开度小于或等于第一开度阈值或者刹车踏板的开度大于或等于第二开度阈值,则控制器进一步判断电动车的车速是否大于或等于预设的速度阈值;若电动车的车速大于或等于速度阈值,则启动电动车的制动能量回馈功能,并根据动力电池的电量判断动力电池是否满足制动能量接收条件。Wherein, the system further includes a second sensor for detecting an opening degree of the accelerator pedal of the electric vehicle or an opening degree of the brake pedal of the electric vehicle, and a third sensor for detecting the vehicle speed of the electric vehicle; Determining whether the opening degree of the accelerator pedal of the electric vehicle is less than or equal to a preset first opening threshold, or determining whether the opening degree of the brake pedal of the electric vehicle is greater than or equal to a preset second opening threshold; if the accelerator pedal If the opening degree is less than or equal to the first opening degree threshold or the opening degree of the brake pedal is greater than or equal to the second opening degree threshold, the controller further determines whether the vehicle speed of the electric vehicle is greater than or equal to a preset speed threshold; if the vehicle speed of the electric vehicle is greater than Or equal to the speed threshold, the braking energy feedback function of the electric vehicle is started, and whether the power battery meets the braking energy receiving condition is determined according to the power of the power battery.
其中,控制器判断动力电池的电量是否小于或等于预设的电量阈值;若动力电池的电量小于或等于电量阈值,则判定满足制动能量接收条件;若动力电池的电量大于电量阈值,则不满足制动能量接收条件。The controller determines whether the power of the power battery is less than or equal to a preset power threshold; if the power of the power battery is less than or equal to the power threshold, determining that the braking energy receiving condition is satisfied; if the power of the power battery is greater than the power threshold, then Meet the braking energy receiving conditions.
其中,在将制动能量回馈给电动车的用电设备的情况下,控制器根据制动能量的功率调整用电设备的功率,其中制动能量的功率越大,调整后的用电设备的功率越大。Wherein, when the braking energy is fed back to the electric device of the electric vehicle, the controller adjusts the power of the electric device according to the power of the braking energy, wherein the power of the braking energy is larger, and the adjusted electric device is used. The greater the power.
其中,控制器将用电设备的功率调整成等于或大于制动能量的功率。Wherein, the controller adjusts the power of the powered device to a power equal to or greater than the braking energy.
其中,用电设备是空调***,当空调***未被启动时,则控制器控制空调***的风扇保持关闭状态,并开启空调***的制冷部件或制热部件。Wherein, the electric equipment is an air conditioning system, and when the air conditioning system is not activated, the controller controls the fan of the air conditioning system to remain closed, and turns on the cooling component or the heating component of the air conditioning system.
其中,当空调***处于制冷状态时,则控制器启动空调***的制热部件,并提升空调***的制冷元件的功率;当空调***处于制热状态时,则控制器启动空调***的制冷部件,并提升空调***的制热元件的功率,进而在满足设定温度要求的情况下利用空调***消耗制动能量。Wherein, when the air conditioning system is in a cooling state, the controller activates the heating component of the air conditioning system and increases the power of the cooling component of the air conditioning system; when the air conditioning system is in the heating state, the controller activates the cooling component of the air conditioning system, The power of the heating element of the air conditioning system is increased, and the braking energy is consumed by the air conditioning system when the set temperature requirement is met.
为解决上述技术问题,本发明又提供一种车辆,车辆包括车体、驱动电机、动力电池、用电设备以及制动能量回馈***,制动能量回馈***包括第一传感器、控制器以及回馈切换***,第一传感器用于检测动力电池的电量,控制器根据动力电池电量判断动力电池是否满足制动能量接收条件,若满足制动能量接收条件,则控制回馈切换***将驱动电机产生的制动能量回馈给动力电池,若不满足制动能量接收条件,则控制回馈切换***将制动能量回馈给用电设备。In order to solve the above technical problem, the present invention further provides a vehicle including a vehicle body, a drive motor, a power battery, a power consumption device, and a brake energy feedback system, wherein the brake energy feedback system includes a first sensor, a controller, and a feedback switch The first sensor is used to detect the power of the power battery, and the controller determines whether the power battery meets the braking energy receiving condition according to the power battery level. If the braking energy receiving condition is met, the control feedback switching system will drive the braking generated by the motor. The energy is fed back to the power battery. If the braking energy receiving condition is not met, the control feedback switching system feeds back the braking energy to the powered device.
其中,制动能量回馈***进一步包括第二传感器和第三传感器,其中第二传感器用于检测车辆的油门踏板的开度或者车辆的刹车踏板的开度,第三传感器用于检测车辆的车速;控制器判断车辆的油门踏板的开度是否小于或等于预设的第一开度阈值,或者判断车辆的刹车踏板的开度是否大于或等于预设的第二开度阈值;若油门踏板的开度小于或等于第一开度阈值或者刹车踏板的开度大于或等于第二开度阈值,则控制器进一步判断车辆的车速是否大于或等于预设的速度阈值;若车辆的车速大于或等于速度阈值,则启动车辆的制动能量回馈功能,并根据动力电池的电量判断动力电池是否满足制动能量接收条件。Wherein, the braking energy feedback system further comprises a second sensor for detecting an opening degree of the accelerator pedal of the vehicle or an opening degree of the brake pedal of the vehicle, and a third sensor for detecting the vehicle speed of the vehicle; The controller determines whether the opening degree of the accelerator pedal of the vehicle is less than or equal to a preset first opening threshold, or determines whether the opening degree of the brake pedal of the vehicle is greater than or equal to a preset second opening threshold; if the accelerator pedal is opened If the degree is less than or equal to the first opening threshold or the opening of the brake pedal is greater than or equal to the second opening threshold, the controller further determines whether the vehicle speed of the vehicle is greater than or equal to a preset speed threshold; if the vehicle speed is greater than or equal to the speed The threshold value starts the braking energy feedback function of the vehicle, and determines whether the power battery satisfies the braking energy receiving condition according to the power quantity of the power battery.
其中,控制器判断动力电池的电量是否小于或等于预设的电量阈值;若动力电池的电量小于或等于电量阈值,则判定满足制动能量接收条件;若动力电池的电量大于电量阈值,则不满足制动能量接收条件。The controller determines whether the power of the power battery is less than or equal to a preset power threshold; if the power of the power battery is less than or equal to the power threshold, determining that the braking energy receiving condition is satisfied; if the power of the power battery is greater than the power threshold, then Meet the braking energy receiving conditions.
其中,在将制动能量回馈给电动车的用电设备的情况下,控制器根据制动能量的功率调整用电设备的功率,其中制动能量的功率越大,调整后的用电设备的功率越大。Wherein, when the braking energy is fed back to the electric device of the electric vehicle, the controller adjusts the power of the electric device according to the power of the braking energy, wherein the power of the braking energy is larger, and the adjusted electric device is used. The greater the power.
其中,控制器将用电设备的功率调整成等于或大于制动能量的功率。Wherein, the controller adjusts the power of the powered device to a power equal to or greater than the braking energy.
其中,用电设备是空调***,当空调***未被启动时,则控制器控制空调***的风扇保持关闭状态,并开启空调***的制冷部件或制热部件,当空调***处于制冷状态时,则控制器启动空调***的制热部件,并提升空调***的制冷元件的功率;当空调***处于制热状态时,则控制器启动空调***的制冷部件,并提升空调***的制热元件的功率,进而在满足用户设定温度要求的情况下利用空调***消耗制动能量。Wherein, the electric equipment is an air conditioning system, when the air conditioning system is not activated, the controller controls the fan of the air conditioning system to remain closed, and turns on the cooling component or the heating component of the air conditioning system, when the air conditioning system is in a cooling state, The controller activates the heating component of the air conditioning system and increases the power of the refrigeration component of the air conditioning system; when the air conditioning system is in the heating state, the controller activates the cooling component of the air conditioning system and increases the power of the heating component of the air conditioning system. Furthermore, the braking energy is consumed by the air conditioning system when the user set temperature requirement is met.
本发明电动车的制动能量回馈方法中,首先检测电动车的动力电池是否满足制动能量接收条件,该检测步骤能够了解动力电池的能量存储空间,以避免动力电池强行接收制动能量而引起的电动车动力***损坏问题。若检测到动力电池满足制动能量接收条件,则将电动车的驱动电极产生的制动能量回馈给动力电池。若不满足,则将制动能量回馈给电动车的用电设备,即当动力电池无法实现制动能量回馈时,可将制动能量通过用电设备消耗,以免电动车通过机械制动的方式进行制动而引起的制动盘损坏问题。因此,采用本发明中制动能量的回馈方法,电动车在动力电池无法接收制动能量时,能够通过用电设备耗散制动能量,实现制动能量回馈功能,而不必利用机械制动,提升了驾驶的安全性。In the braking energy feedback method of the electric vehicle of the present invention, firstly, it is detected whether the power battery of the electric vehicle meets the braking energy receiving condition, and the detecting step can understand the energy storage space of the power battery to prevent the power battery from forcibly receiving the braking energy. The electric vehicle power system is damaged. If it is detected that the power battery satisfies the braking energy receiving condition, the braking energy generated by the driving electrode of the electric vehicle is fed back to the power battery. If it is not satisfied, the braking energy is fed back to the electric equipment of the electric vehicle, that is, when the power battery cannot realize the braking energy feedback, the braking energy can be consumed by the electric equipment, so as to avoid the electric vehicle passing the mechanical braking manner. Brake disc damage caused by braking. Therefore, according to the feedback method of the braking energy in the present invention, when the power battery cannot receive the braking energy, the electric vehicle can dissipate the braking energy through the electric device to realize the braking energy feedback function without using the mechanical brake. Improve the safety of driving.
【附图说明】 [Description of the Drawings]
图1是本发明电动车的制动能量回馈方法一实施方式的流程示意图;1 is a schematic flow chart of an embodiment of a braking energy feedback method for an electric vehicle according to the present invention;
图2是图1所示制动能量回馈方法一实施方式中调整空调***的功率的流程示意图;2 is a schematic flow chart of adjusting power of an air conditioning system in an embodiment of the braking energy feedback method shown in FIG. 1;
图3是本发明电动车的制动能量回馈***一实施方式的结构示意图;3 is a schematic structural view of an embodiment of a braking energy feedback system for an electric vehicle according to the present invention;
图4是本发明车辆一实施方式的结构示意图;4 is a schematic structural view of an embodiment of a vehicle according to the present invention;
图5是图4所示车辆一实施方式中空调***的结构示意图。FIG. 5 is a schematic structural view of an air conditioning system in an embodiment of the vehicle shown in FIG. 4. FIG.
【具体实施方式】【detailed description】
下面将结合本发明实施方式及其附图,对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施方式仅是本发明的一部分实施方式,而不是全部的实施方式。基于本发明中的实施方式,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式,都属于本发明保护的范围。The technical solutions of the present invention are clearly and completely described in the following with reference to the embodiments of the present invention and the accompanying drawings. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
电动车在长下坡行驶时处于制动工况,需要开启制动能量回馈功能实现制动。电动车在进行制动能量回馈时,检测电动车的动力电池是否满足制动能量接收条件,若满足接收条件,则将电动车的驱动电机产生的制动能量回馈给动力电池;若不满足接收条件,则将制动能量回馈给电动车的空调***。The electric vehicle is in a braking condition when driving downhill, and it is necessary to turn on the braking energy feedback function to achieve braking. When the electric vehicle performs braking energy feedback, it detects whether the power battery of the electric vehicle meets the braking energy receiving condition, and if the receiving condition is satisfied, the braking energy generated by the driving motor of the electric vehicle is fed back to the power battery; if the receiving is not satisfied Condition, the braking energy is fed back to the air conditioning system of the electric vehicle.
对于上述电动车在长下坡行驶时制动工况的过程,具体步骤请参阅图1,图1是本发明电动车的制动能量回馈方法一实施方式的流程示意图。本实施方式制动能量回馈方法包括以下步骤。For the process of the above-mentioned electric vehicle braking condition during long downhill driving, please refer to FIG. 1 for specific steps. FIG. 1 is a schematic flow chart of an embodiment of a braking energy feedback method for an electric vehicle according to the present invention. The braking energy feedback method of the present embodiment includes the following steps.
S11:检测油门踏板或刹车踏板的开度。S11: Detect the opening degree of the accelerator pedal or the brake pedal.
S12:检测电动车的车速。S12: Detecting the speed of the electric vehicle.
本实施方式中根据油门踏板或刹车踏板的开度以及车速来判断是否启动电动车的制动能量回馈功能,即上述两步骤S11、S12用于判断是否启动制动能量回馈功能。具体来说,步骤S11中检测到油门踏板的开度小于或等于第一开度阈值或者刹车踏板的开度大于或等于第二开度阈值时,则进行步骤S12,检测电动车的车速是否大于或等于预设的速度阈值,若大于或等于速度阈值,则启动制动能量回馈***,进行步骤S13;若小于速度阈值,则认为无需进行制动能量回馈。In the present embodiment, whether or not to activate the braking energy feedback function of the electric vehicle is determined based on the opening degree of the accelerator pedal or the brake pedal and the vehicle speed, that is, the above two steps S11 and S12 are used to determine whether or not to activate the braking energy feedback function. Specifically, when it is detected in step S11 that the opening degree of the accelerator pedal is less than or equal to the first opening degree threshold or the opening degree of the brake pedal is greater than or equal to the second opening degree threshold, step S12 is performed to detect whether the vehicle speed of the electric vehicle is greater than or equal to Or equal to the preset speed threshold. If it is greater than or equal to the speed threshold, the braking energy feedback system is started, and step S13 is performed; if it is less than the speed threshold, it is considered that braking energy feedback is not needed.
S13:启动制动能量回馈功能,并检测电动车的动力电池是否满足制动能量接收条件。S13: Start the braking energy feedback function, and detect whether the power battery of the electric vehicle meets the braking energy receiving condition.
在进行制动能量回馈时,首先检测电动车的动力电池是否满足制动能量接收条件,即检测动力电池中是否由足够的电量存储空间。一般来说,在本步骤S13中检测动力电池的电量是否小于或等于预设的电量阈值,若动力电池的电量小于或等于电量阈值,则认为动力电池还可存储一定的电量,即满足制动能量接收条件。When braking energy feedback is performed, it is first detected whether the power battery of the electric vehicle satisfies the braking energy receiving condition, that is, whether the power battery has sufficient power storage space. Generally, in this step S13, it is detected whether the power of the power battery is less than or equal to a preset power threshold. If the power of the power battery is less than or equal to the power threshold, the power battery is also considered to store a certain amount of power, that is, the brake is satisfied. Energy receiving conditions.
当本步骤S13中判断出动力电池满足制动能量接收条件时,进行步骤S14;当判断动力电池不满足制动能量接收条件时,进行步骤S15。When it is determined in this step S13 that the power battery satisfies the braking energy receiving condition, step S14 is performed; and when it is determined that the power battery does not satisfy the braking energy receiving condition, step S15 is performed.
S14:将电动车的驱动电机产生的制动能量回馈给动力电池。S14: The braking energy generated by the driving motor of the electric vehicle is fed back to the power battery.
若动力电池满足制动能量接收条件,则把电动车驱动电机产生的制动能量回馈给动力电池,动力电池保存该多余的能量。If the power battery satisfies the braking energy receiving condition, the braking energy generated by the electric vehicle driving motor is fed back to the power battery, and the power battery stores the excess energy.
S15:将电动车的驱动电机产生的制动能量回馈给电动车的用电设备。S15: The braking energy generated by the driving motor of the electric vehicle is fed back to the electric equipment of the electric vehicle.
若动力电池不满足制动能量接收条件,则把电动车的驱动电机产生的制动能量回馈给电动车的用电设备,通过用电设备来消耗多余的能量。If the power battery does not satisfy the braking energy receiving condition, the braking energy generated by the driving motor of the electric vehicle is fed back to the electric device of the electric vehicle, and the excess energy is consumed by the electric device.
具体来说,本步骤S15中回馈方式是:根据制动能量的功率调整用电设备的功率,制动能量的功率越大,则调整后的用电设备的功率越大。一般是将空调***的功率调整成等于或大于制动能量的功率。Specifically, in the step S15, the feedback mode is: the power of the electric device is adjusted according to the power of the braking energy, and the power of the electric device after the adjustment is larger as the power of the braking energy is larger. Generally, the power of the air conditioning system is adjusted to be equal to or greater than the power of the braking energy.
用电设备选用电动车中可调节功率的大功率用电设备,一般为空调***,对于空调***的调整方式具体请参阅图2,图2是图1所示制动能量回馈方法一实施方式中调整空调***的功率的流程示意图。空调***的调整包括以下步骤。The electric power equipment selects the high-power electric equipment with adjustable power in the electric vehicle, generally is an air-conditioning system. For the adjustment method of the air-conditioning system, please refer to FIG. 2, FIG. 2 is an embodiment of the braking energy feedback method shown in FIG. A schematic diagram of the process of adjusting the power of the air conditioning system. The adjustment of the air conditioning system includes the following steps.
S151:检测空调***是否被启动。S151: Detect whether the air conditioning system is started.
若空调***未被启动,即此时不需要调节温度,进入到步骤S152。若空调***被开启,则进入到步骤S153。If the air conditioning system is not activated, that is, it is not necessary to adjust the temperature at this time, the process proceeds to step S152. If the air conditioning system is turned on, it proceeds to step S153.
S152:控制空调***的风扇保持关闭状态,并开启空调***的制冷部件或制热部件。S152: The fan controlling the air conditioning system is kept closed, and the cooling component or the heating component of the air conditioning system is turned on.
该步骤S152对应于空调***未被开启的情况,由于此时不需要调节温度,因此控制空调***的风扇保持关闭状态,此时空调***所产生的冷风或热风不会被风扇吹入驾驶室,而造成温度变化。由于空调***需要消耗制动能量,因此本步骤S152中需要开启空调***的制冷部件或制热部件,且将制冷部件或制热部件的功率调整为等于或大于制动能量的功率。The step S152 corresponds to the case where the air conditioning system is not turned on. Since the temperature is not required to be adjusted at this time, the fan controlling the air conditioning system remains in the off state, and the cold air or hot air generated by the air conditioning system is not blown into the cab by the fan. And cause temperature changes. Since the air conditioning system needs to consume the braking energy, in this step S152, it is necessary to turn on the cooling component or the heating component of the air conditioning system, and adjust the power of the cooling component or the heating component to be equal to or greater than the power of the braking energy.
S153:检测空调***处于制冷状态还是制热状态。S153: Detect whether the air conditioning system is in a cooling state or a heating state.
在检测到空调***被开启后,则进一步判断空调***是出于制冷状态还是制热状态。若空调***处于制冷状态,则进行步骤S154;若空调***处于制热状态,则进行步骤S155。After detecting that the air conditioning system is turned on, it is further determined whether the air conditioning system is in a cooling state or a heating state. If the air conditioning system is in the cooling state, step S154 is performed; if the air conditioning system is in the heating state, step S155 is performed.
S154:启动空调***的制热部件,并提升空调***的制冷部件的功率。S154: Start heating components of the air conditioning system and increase the power of the cooling components of the air conditioning system.
该步骤S154对应于空调***处于制冷状态的情况,此时开启空调***的制热部件,同时提升制冷部件的功率,使得制冷部件功率提升的部分对温度的影响与制热部件对温度的影响能够相互抵消,并利用开启的制热部件和制冷部件来消耗制动能量。在满足用户设定温度要求的情况下利用空调***消耗制动能量。The step S154 corresponds to the case where the air conditioning system is in a cooling state. At this time, the heating component of the air conditioning system is turned on, and the power of the cooling component is increased, so that the influence of the power of the cooling component on the temperature and the influence of the heating component on the temperature can be They cancel each other out and consume the braking energy by using the heating and cooling components that are turned on. The braking energy is consumed by the air conditioning system while satisfying the user set temperature requirements.
S155:启动空调***的制冷部件,并提升空调***的制热部件的功率。S155: Start the cooling component of the air conditioning system and increase the power of the heating component of the air conditioning system.
该步骤S155对应于空调***处于制热状态的情况,与步骤S154中同样的原理,开启空调***的制冷部件,同时提升制热部件的功率,使得制热部件功率提升的部分对温度的影响与制冷部件对温度的影响能够相互抵消,并利用开启的制热部件和制冷部件来消耗制动能量。实现了在满足用户设定温度要求的情况下利用空调***消耗制动能量。The step S155 corresponds to the case where the air conditioning system is in the heating state, and the same principle as in the step S154 is performed, the refrigeration component of the air conditioning system is turned on, and the power of the heating component is raised, so that the power boosting portion of the heating component affects the temperature and The effects of the cooling components on the temperature can cancel each other out and consume the braking energy by means of the open heating and cooling components. It is realized that the braking energy is consumed by the air conditioning system while satisfying the user set temperature requirement.
上述步骤S152、S154、S155既满足了用户对驾驶室内温度的要求,也利用空调***消耗制动能量,实现了步骤S15中所描述的将驱动电极产生的制动能量回馈给电动车的用电设备。The above steps S152, S154, and S155 satisfy the user's requirement for the temperature in the cab, and also utilize the braking energy consumed by the air conditioning system, thereby realizing the power consumption of the braking energy generated by the driving electrode to the electric vehicle described in step S15. device.
本实施方式的制动能量回馈方法,使得电动车在长下坡行驶时的制动工况中,通过动力电池存储或空调***耗散实现制动能量回馈功能,以满足长下坡行驶时的制动需求,具体在动力电池电量较高时,制动能量不需要进入到动力电池,也不必利用机械制动,而是通过用电设备来耗散,实现制动能量回馈功能,使得电动车的车速维持在一个合理区间,提升驾驶的安全性。
The braking energy feedback method of the present embodiment enables the electric vehicle to realize the braking energy feedback function by the power battery storage or the air conditioning system dissipating in the braking condition during long downhill driving to meet the long downhill driving time. Braking demand, specifically when the power battery is high, the braking energy does not need to enter the power battery, and does not need to use mechanical braking, but is dissipated by the electric equipment to realize the braking energy feedback function, so that the electric vehicle The speed of the vehicle is maintained at a reasonable interval to improve the safety of driving.
电动车中具有制动能量回馈***,能够实现上述制动能量回馈方法。具体请参阅图3,图3是本发明电动车的制动能量回馈***一实施方式的结构示意图。本实施方式制动能量回馈***100包括第一传感器11、第二传感器12、第三传感器13、控制器14、回馈切换***15。The electric vehicle has a braking energy feedback system capable of implementing the above braking energy feedback method. For details, please refer to FIG. 3. FIG. 3 is a schematic structural diagram of an embodiment of a braking energy feedback system for an electric vehicle according to the present invention. The brake energy feedback system 100 of the present embodiment includes a first sensor 11, a second sensor 12, a third sensor 13, a controller 14, and a feedback switching system 15.
其中,第一传感器11用于检测电动车的动力电池的电量。控制器14根据第一传感器11检测到的电量判断动力电池是否满足制动能量接收条件;若满足,则控制回馈切换***15将电动车的驱动电机产生的制动能量回馈给动力电池;若不满足,则控制回馈切换***15将制动能量回馈给电动车的用电设备。The first sensor 11 is used to detect the power of the power battery of the electric vehicle. The controller 14 determines whether the power battery meets the braking energy receiving condition according to the amount of power detected by the first sensor 11; if satisfied, the control feedback switching system 15 returns the braking energy generated by the driving motor of the electric vehicle to the power battery; If satisfied, the control feedback switching system 15 feeds back the braking energy to the powered device of the electric vehicle.
对应于上述制动能量回馈方法中的步骤S11、S12,即为实现电动车的制动能量回馈功能的开启,制动能量回馈***100中还包括第二传感器12和第三传感器13,第二传感器12用于检测电动车的油门踏板的开度或电动车的刹车踏板的开度,第三传感器13用于检测电动车的车速。Corresponding to the steps S11, S12 in the above-mentioned braking energy feedback method, that is, to realize the opening of the braking energy feedback function of the electric vehicle, the braking energy feedback system 100 further includes a second sensor 12 and a third sensor 13, second The sensor 12 is for detecting the opening degree of the accelerator pedal of the electric vehicle or the opening degree of the brake pedal of the electric vehicle, and the third sensor 13 is for detecting the vehicle speed of the electric vehicle.
控制器14根据第二传感器12检测结果判断电动车的油门踏板的开度是否小于或等于预设的第一开度阈值;或者判断电动车的刹车踏板的开度是否大于或等于预设的第二开度阈值。若油门踏板的开度小于或等于第一开度阈值;或者刹车踏板的开度大于或等于第二开度阈值;则控制器14进一步根据第三传感器13检测结果判断电动车的车速是否大于或等于预设的速度阈值,若电动车的车速大于或等于速度阈值,则控制器14启动电动车的制动能量回馈功能。The controller 14 determines whether the opening degree of the accelerator pedal of the electric vehicle is less than or equal to a preset first opening threshold according to the detection result of the second sensor 12; or determines whether the opening degree of the brake pedal of the electric vehicle is greater than or equal to a preset number Two opening threshold. If the opening degree of the accelerator pedal is less than or equal to the first opening degree threshold; or the opening degree of the brake pedal is greater than or equal to the second opening degree threshold; the controller 14 further determines whether the vehicle speed of the electric vehicle is greater than or based on the detection result of the third sensor 13 Equal to the preset speed threshold, if the vehicle speed of the electric vehicle is greater than or equal to the speed threshold, the controller 14 activates the braking energy feedback function of the electric vehicle.
对应于上述制动能量回馈方法中的步骤S13,控制器14在启动电动车的制动能量回馈功能时,还根据第一传感器11检测到的动力电池电量判断动力电池是否满足制动能量接收条件。Corresponding to step S13 in the above-mentioned braking energy feedback method, the controller 14 determines whether the power battery meets the braking energy receiving condition according to the power battery power detected by the first sensor 11 when starting the braking energy feedback function of the electric vehicle. .
上述在回馈切换***15将制动能量回馈给电动车的用电设备的情况下,控制器14根据制动能量的功率调整用电设备的功率,其中制动能量的功率越大,调整后的用电设备的功率越大。一般来说,控制器14将用电设备的功率调整成等于或大于制动能量的功率。In the case where the feedback switching system 15 returns the braking energy to the electric device of the electric vehicle, the controller 14 adjusts the power of the electric device according to the power of the braking energy, wherein the adjusted power of the braking energy is larger, and the adjusted The power of the powered device is greater. Generally, the controller 14 adjusts the power of the powered device to a power equal to or greater than the braking energy.
本实施方式中,选用空调***作为用电设备,对应于上述步骤S151-S155,当空调***未被启动时,控制器14控制空调***的风扇保持关闭状态,并开启空调***的制冷部件或制热部件;当空调***处于制冷状态时,控制器14启动空调***的制热部件,并提升空调***的制冷元件的功率;当空调***处于制热状态时,控制器14启动空调***的制冷部件,并提升空调***的制热元件的功率,进而在满足用户设定温度要求的情况下利用空调***消耗制动能量。In the present embodiment, the air conditioning system is selected as the electric equipment, corresponding to the above steps S151-S155, when the air conditioning system is not activated, the controller 14 controls the fan of the air conditioning system to remain closed, and opens the refrigeration component or system of the air conditioning system. a hot component; when the air conditioning system is in a cooling state, the controller 14 activates the heating component of the air conditioning system and boosts the power of the refrigeration component of the air conditioning system; when the air conditioning system is in the heating state, the controller 14 activates the refrigeration component of the air conditioning system And the power of the heating element of the air conditioning system is increased, and the braking energy is consumed by the air conditioning system while satisfying the user set temperature requirement.
本实施方式制动能量回馈***,能够使得电动车在长下坡行驶时的制动工况中,通过动力电池存储或空调***耗散实现制动能量回馈功能,提升驾驶的安全性。In the brake energy feedback system of the present embodiment, the brake energy feedback function can be realized by the power battery storage or the air conditioning system dissipating in the braking condition during the long downhill driving, thereby improving the safety of driving.
对于采用上述制动能量回馈方法的车辆,请参阅图4,图4是本发明电动车一实施方式的结构示意图,本实施方式车辆200包括驱动电机21、动力电池22、用电设备23、制动能量回馈***24和车体25。车辆200可以为纯电动车或混合动力电动车。Referring to FIG. 4, FIG. 4 is a schematic structural diagram of an embodiment of an electric vehicle according to the present invention. The vehicle 200 of the present embodiment includes a driving motor 21, a power battery 22, and a power generating device 23, The dynamic energy feedback system 24 and the vehicle body 25. The vehicle 200 can be a pure electric vehicle or a hybrid electric vehicle.
制动能量回馈***24类似于上述制动能量回馈***100,具有第一传感器241、第二传感器242、第三传感器243、控制器244及回馈切换***245。The brake energy feedback system 24 is similar to the brake energy feedback system 100 described above, having a first sensor 241, a second sensor 242, a third sensor 243, a controller 244, and a feedback switching system 245.
具体来说,第一传感器241用于检测动力电池22的电量,控制器244根据动力电池22电量判断动力电池22是否满足制动能量接收条件,若满足制动能量接收条件,则控制回馈切换***245将驱动电机21产生的制动能量回馈给动力电池22,若不满足制动能量接收条件,则控制回馈切换***245将制动能量回馈给用电设备23。Specifically, the first sensor 241 is configured to detect the power of the power battery 22, and the controller 244 determines whether the power battery 22 satisfies the braking energy receiving condition according to the power of the power battery 22. If the braking energy receiving condition is met, the feedback switching system is controlled. 245 feeds back the braking energy generated by the driving motor 21 to the power battery 22. If the braking energy receiving condition is not satisfied, the control feedback switching system 245 returns the braking energy to the powered device 23.
第二传感器242则用于检测车辆200的油门踏板的开度或者车辆200的刹车踏板的开度,第三传感器243用于检测车辆200的车速.The second sensor 242 is used to detect the opening degree of the accelerator pedal of the vehicle 200 or the opening degree of the brake pedal of the vehicle 200, and the third sensor 243 is used to detect the vehicle speed of the vehicle 200.
控制器244判断车辆200的油门踏板的开度是否小于或等于预设的第一开度阈值,或者判断车辆200的刹车踏板的开度是否大于或等于预设的第二开度阈值,若油门踏板的开度小于或等于第一开度阈值或者刹车踏板的开度大于或等于第二开度阈值,则控制器244进一步判断车辆200的车速是否大于或等于预设的速度阈值,若车辆200的车速大于或等于速度阈值,则启动车辆200的制动能量回馈功能,并根据动力电池22的电量判断动力电池22是否满足制动能量接收条件。The controller 244 determines whether the opening degree of the accelerator pedal of the vehicle 200 is less than or equal to a preset first opening threshold, or determines whether the opening degree of the brake pedal of the vehicle 200 is greater than or equal to a preset second opening threshold, if the throttle If the opening degree of the pedal is less than or equal to the first opening threshold or the opening degree of the brake pedal is greater than or equal to the second opening threshold, the controller 244 further determines whether the vehicle speed of the vehicle 200 is greater than or equal to a preset speed threshold, if the vehicle 200 If the vehicle speed is greater than or equal to the speed threshold, the braking energy feedback function of the vehicle 200 is started, and whether the power battery 22 satisfies the braking energy receiving condition is determined according to the power of the power battery 22.
其中,控制器244通过判断动力电池22的电量是否小于或等于预设的电量阈值,来判断动力电池22是否满足制动能量接收条件。若动力电池22的电量小于或等于电量阈值,则判定满足制动能量接收条件。The controller 244 determines whether the power battery 22 satisfies the braking energy receiving condition by determining whether the power of the power battery 22 is less than or equal to a preset power threshold. If the amount of power of the power battery 22 is less than or equal to the power threshold, it is determined that the braking energy receiving condition is satisfied.
在将制动能量回馈给车辆200的用电设备23的情况下,控制器244根据制动能量的功率调整用电设备23的功率,其中制动能量的功率越大,调整后的空调***的功率越大。一般来说,控制器244将用电设备23的功率调整成等于或大于制动能量的功率。In the case where the braking energy is fed back to the electric device 23 of the vehicle 200, the controller 244 adjusts the power of the electric device 23 according to the power of the braking energy, wherein the electric power of the braking energy is larger, the adjusted air conditioning system The greater the power. Generally, the controller 244 adjusts the power of the powered device 23 to a power equal to or greater than the braking energy.
本实施方式中,选择空调***作为车辆200的用电设备23,请参阅图5,图5是图4所示电动车一实施方式中空调***的结构示意图,其中空调***23包括风扇231、压缩机232和热敏电阻233,其中压缩机232即为空调***23的制冷部件,热敏电阻233即为空调***的制热部件。In the present embodiment, an air conditioning system is selected as the electrical equipment 23 of the vehicle 200. Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of an air conditioning system according to an embodiment of the electric vehicle shown in FIG. 4, wherein the air conditioning system 23 includes a fan 231 and compression. The machine 232 and the thermistor 233, wherein the compressor 232 is a cooling component of the air conditioning system 23, and the thermistor 233 is a heating component of the air conditioning system.
当空调***23未被启动时,控制器244控制空调***23的风扇保持关闭状态,并开启空调***23的制冷部件即压缩机232或制热部件即热敏电阻233。When the air conditioning system 23 is not activated, the controller 244 controls the fan of the air conditioning system 23 to remain in the closed state, and turns on the refrigeration unit of the air conditioning system 23, that is, the compressor 232 or the heating element, that is, the thermistor 233.
当空调***23处于制冷状态时,控制器244启动空调***23的制热部件即热敏电阻233,并提升空调***23的制冷元件即压缩机232的功率。When the air conditioning system 23 is in the cooling state, the controller 244 activates the thermistor 233 which is the heating component of the air conditioning system 23, and boosts the power of the refrigeration element of the air conditioning system 23, that is, the compressor 232.
当空调***233处于制热状态时,控制器244启动空调***23的制冷部件即压缩机232,并提升空调***23的制热元件即热敏电阻233的功率。When the air conditioning system 233 is in the heating state, the controller 244 activates the refrigeration unit, that is, the compressor 232 of the air conditioning system 23, and boosts the power of the thermistor 233, which is the heating element of the air conditioning system 23.
进而在满足用户设定温度要求的情况下利用空调***23消耗制动能量。Further, the braking energy is consumed by the air conditioning system 23 when the user set temperature requirement is satisfied.
本实施方式电动车在长下坡行驶时的制动工况中,通过动力电池存储或空调***耗散实现制动能量回馈功能,安全性能较好。In the braking condition of the electric vehicle according to the present embodiment, the braking energy feedback function is realized by the power battery storage or the air conditioning system dissipating in the braking condition during long downhill driving, and the safety performance is good.
以上所述仅为本发明的实施方式,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构变换或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and equivalent structural transformation or equivalent flow transformation using the specification and the drawings of the present invention, or directly or indirectly applied to other related The technical field is equally included in the scope of patent protection of the present invention.
Claims (20)
- 一种电动车的制动能量回馈方法,其特征在于,所述方法包括:A braking energy feedback method for an electric vehicle, characterized in that the method comprises:检测所述电动车的动力电池是否满足制动能量接收条件;Detecting whether the power battery of the electric vehicle meets a braking energy receiving condition;若满足所述制动能量接收条件,则将所述电动车的驱动电机产生的制动能量回馈给所述动力电池;If the braking energy receiving condition is met, the braking energy generated by the driving motor of the electric vehicle is fed back to the power battery;若不满足所述制动能量接收条件,则将所述制动能量回馈给所述电动车的用电设备。If the braking energy receiving condition is not satisfied, the braking energy is fed back to the electric device of the electric vehicle.
- 根据权利要求1所述的方法,其特征在于,所述检测所述电动车的动力电池是否满足制动能量接收条件的步骤之前,进一步包括:The method according to claim 1, wherein before the step of detecting whether the power battery of the electric vehicle meets the braking energy receiving condition, the method further comprises:检测所述电动车的油门踏板的开度是否小于或等于预设的第一开度阈值,或者检测所述电动车的刹车踏板的开度是否大于或等于预设的第二开度阈值;Detecting whether the opening degree of the accelerator pedal of the electric vehicle is less than or equal to a preset first opening degree threshold, or detecting whether the opening degree of the brake pedal of the electric vehicle is greater than or equal to a preset second opening degree threshold;若所述油门踏板的开度小于或等于所述第一开度阈值或者所述刹车踏板的开度大于或等于所述第二开度阈值,则进一步检测所述电动车的车速是否大于或等于预设的速度阈值;If the opening degree of the accelerator pedal is less than or equal to the first opening degree threshold or the opening degree of the brake pedal is greater than or equal to the second opening degree threshold, further detecting whether the vehicle speed of the electric vehicle is greater than or equal to Preset speed threshold;若所述电动车的车速大于或等于所述速度阈值,则启动所述电动车的制动能量回馈功能,并执行所述检测所述电动车的动力电池是否满足制动能量接收条件的步骤。If the vehicle speed of the electric vehicle is greater than or equal to the speed threshold, the braking energy feedback function of the electric vehicle is activated, and the step of detecting whether the power battery of the electric vehicle meets the braking energy receiving condition is performed.
- 根据权利要求1所述的方法,其特征在于,所述检测动力电池是否满足制动能量接收条件的步骤包括:The method according to claim 1, wherein the step of detecting whether the power battery satisfies the braking energy receiving condition comprises:检测所述动力电池的电量是否小于或等于预设的电量阈值;Detecting whether the power of the power battery is less than or equal to a preset power threshold;若所述动力电池的电量小于或等于所述电量阈值,则满足所述制动能量接收条件;If the power of the power battery is less than or equal to the power threshold, the braking energy receiving condition is met;若所述动力电池的电量大于所述电量阈值,则不满足所述制动能量接收条件。If the power of the power battery is greater than the power threshold, the braking energy receiving condition is not satisfied.
- 根据权利要求1所述的方法,其特征在于,所述将所述制动能量提供给用电设备的步骤包括:The method of claim 1 wherein said step of providing said braking energy to said powered device comprises:根据所述制动能量的功率调整所述用电设备的功率,其中所述制动能量的功率越大,调整后的所述用电设备的功率越大。Adjusting the power of the powered device according to the power of the braking energy, wherein the greater the power of the braking energy, the greater the power of the adjusted electrical device.
- 根据权利要求4所述的方法,其特征在于,所述根据所述制动能量的功率调整所述用电设备的功率的步骤包括:The method according to claim 4, wherein the step of adjusting the power of the powered device according to the power of the braking energy comprises:将所述用电设备的功率调整成等于或大于所述制动能量的功率。The power of the powered device is adjusted to be equal to or greater than the power of the braking energy.
- 根据权利要求4所述的方法,其特征在于,所述用电设备是空调***,所述根据所述制动能量的功率调整所述用电设备的功率的步骤包括:The method according to claim 4, wherein the powered device is an air conditioning system, and the step of adjusting the power of the powered device according to the power of the braking energy comprises:检测所述空调***是否被启动;Detecting whether the air conditioning system is activated;若所述空调***未被启动,则控制所述空调***的风扇保持关闭状态,并开启所述空调***的制冷部件或制热部件。If the air conditioning system is not activated, the fan of the air conditioning system is controlled to remain in a closed state, and the cooling component or the heating component of the air conditioning system is turned on.
- 根据权利要求6所述的方法,其特征在于,所述用电设备是空调***,所述根据所述制动能量的功率调整所述用电设备的功率的步骤还包括:The method according to claim 6, wherein the electric device is an air conditioning system, and the step of adjusting the power of the electric device according to the power of the braking energy further comprises:若所述空调***已被启动,检测所述空调***处于制冷状态还是制热状态;If the air conditioning system has been activated, detecting whether the air conditioning system is in a cooling state or a heating state;若处于制冷状态,则启动所述空调***的制热部件,并提升所述空调***的制冷元件的功率;If in a cooling state, starting a heating component of the air conditioning system and boosting a power of the refrigeration component of the air conditioning system;若处于制热状态,则启动所述空调***的制冷部件,并提升所述空调***的制热元件的功率;进而在满足用户设定温度要求的情况下利用所述空调***消耗所述制动能量。If in a heating state, starting a cooling component of the air conditioning system and boosting power of the heating element of the air conditioning system; and further consuming the brake by the air conditioning system if a user set temperature requirement is met energy.
- 一种电动车的制动能量回馈***,其特征在于,所述***包括第一传感器、控制器以及回馈切换***,所述第一传感器用于检测所述电动车的动力电池的电量,所述控制器根据所述动力电池的电量判断所述动力电池是否满足制动能量接收条件,若满足所述制动能量接收条件,则控制所述回馈切换***将所述电动车的驱动电机产生的制动能量回馈给所述动力电池,若不满足所述制动能量接收条件,则控制所述回馈切换***将所述制动能量回馈给所述电动车的用电设备。A brake energy feedback system for an electric vehicle, characterized in that the system comprises a first sensor, a controller and a feedback switching system, the first sensor for detecting a power quantity of a power battery of the electric vehicle, The controller determines, according to the power quantity of the power battery, whether the power battery meets the braking energy receiving condition, and if the braking energy receiving condition is met, controlling the feedback switching system to generate the driving motor of the electric vehicle The kinetic energy is fed back to the power battery, and if the braking energy receiving condition is not met, the feedback switching system is controlled to feed the braking energy back to the electric device of the electric vehicle.
- 根据权利要求8所述的***,其特征在于,所述***进一步包括第二传感器和第三传感器,其中所述第二传感器用于检测所述电动车的油门踏板的开度或者所述电动车的刹车踏板的开度,所述第三传感器用于检测所述电动车的车速;所述控制器判断所述电动车的油门踏板的开度是否小于或等于预设的第一开度阈值,或者判断所述电动车的刹车踏板的开度是否大于或等于预设的第二开度阈值;若所述油门踏板的开度小于或等于所述第一开度阈值或者所述刹车踏板的开度大于或等于所述第二开度阈值,则所述控制器进一步判断所述电动车的车速是否大于或等于预设的速度阈值;若所述电动车的车速大于或等于所述速度阈值,则启动所述电动车的制动能量回馈功能,并根据所述动力电池的电量判断所述动力电池是否满足制动能量接收条件。The system of claim 8 wherein said system further comprises a second sensor and a third sensor, wherein said second sensor is operative to detect an opening of said accelerator pedal of said electric vehicle or said electric vehicle The opening degree of the brake pedal, the third sensor is configured to detect a vehicle speed of the electric vehicle; and the controller determines whether an opening degree of the accelerator pedal of the electric vehicle is less than or equal to a preset first opening threshold, Or determining whether the opening degree of the brake pedal of the electric vehicle is greater than or equal to a preset second opening degree threshold; if the opening degree of the accelerator pedal is less than or equal to the first opening degree threshold or the opening of the brake pedal If the degree is greater than or equal to the second opening threshold, the controller further determines whether the vehicle speed of the electric vehicle is greater than or equal to a preset speed threshold; if the vehicle speed of the electric vehicle is greater than or equal to the speed threshold, Then, the braking energy feedback function of the electric vehicle is started, and whether the power battery meets the braking energy receiving condition is determined according to the power of the power battery.
- 根据权利要求8所述的***,其特征在于,所述控制器判断所述动力电池的电量是否小于或等于预设的电量阈值;若所述动力电池的电量小于或等于所述电量阈值,则判定满足所述制动能量接收条件;若所述动力电池的电量大于所述电量阈值,则不满足所述制动能量接收条件。The system according to claim 8, wherein the controller determines whether the power of the power battery is less than or equal to a preset power threshold; if the power of the power battery is less than or equal to the power threshold, It is determined that the braking energy receiving condition is satisfied; if the power of the power battery is greater than the power threshold, the braking energy receiving condition is not satisfied.
- 根据权利要求8所述的***,其特征在于,在将所述制动能量回馈给所述电动车的用电设备的情况下,所述控制器根据所述制动能量的功率调整所述用电设备的功率,其中所述制动能量的功率越大,调整后的所述用电设备的功率越大。The system according to claim 8, wherein in the case of feeding back the braking energy to the electric device of the electric vehicle, the controller adjusts the use according to the power of the braking energy The power of the electrical device, wherein the greater the power of the braking energy, the greater the power of the adjusted electrical device.
- 根据权利要求11所述的***,其特征在于,所述控制器将所述用电设备的功率调整成等于或大于所述制动能量的功率。The system of claim 11 wherein said controller adjusts power of said powered device to a power equal to or greater than said braking energy.
- 根据权利要求11所述的***,其特征在于,所述用电设备是空调***,当所述空调***未被启动时,则所述控制器控制所述空调***的风扇保持关闭状态,并开启所述空调***的制冷部件或制热部件。The system according to claim 11, wherein said powered device is an air conditioning system, and when said air conditioning system is not activated, said controller controls said fan of said air conditioning system to remain off and open a cooling component or a heating component of the air conditioning system.
- 根据权利要求13所述的***,其特征在于,当所述空调***处于制冷状态时,则所述控制器启动所述空调***的制热部件,并提升所述空调***的制冷元件的功率;当所述空调***处于制热状态时,则所述控制器启动所述空调***的制冷部件,并提升所述空调***的制热元件的功率,进而在满足用户设定温度要求的情况下利用所述空调***消耗所述制动能量。The system according to claim 13, wherein when said air conditioning system is in a cooling state, said controller activates a heating component of said air conditioning system and boosts a power of said refrigeration component of said air conditioning system; When the air conditioning system is in a heating state, the controller activates a cooling component of the air conditioning system, and boosts power of a heating element of the air conditioning system, thereby utilizing a user-set temperature requirement The air conditioning system consumes the braking energy.
- 一种车辆,其特征在于,所述车辆包括车体、驱动电机、动力电池、用电设备以及制动能量回馈***,所述制动能量回馈***包括第一传感器、控制器以及回馈切换***,所述第一传感器用于检测所述动力电池的电量,所述控制器根据所述动力电池电量判断所述动力电池是否满足制动能量接收条件,若满足所述制动能量接收条件,则控制所述回馈切换***将所述驱动电机产生的制动能量回馈给所述动力电池,若不满足所述制动能量接收条件,则控制所述回馈切换***将所述制动能量回馈给所述用电设备。A vehicle, comprising: a vehicle body, a drive motor, a power battery, a power consumption device, and a brake energy feedback system, the brake energy feedback system comprising a first sensor, a controller, and a feedback switching system, The first sensor is configured to detect a quantity of the power battery, and the controller determines, according to the power battery quantity, whether the power battery meets a braking energy receiving condition, and if the braking energy receiving condition is met, controlling The feedback switching system feeds back the braking energy generated by the driving motor to the power battery, and if the braking energy receiving condition is not met, controlling the feedback switching system to feed the braking energy back to the Electrical equipment.
- 根据权利要求15所述的车辆,其特征在于,所述制动能量回馈***进一步包括第二传感器和第三传感器,其中所述第二传感器用于检测所述车辆的油门踏板的开度或者所述车辆的刹车踏板的开度,所述第三传感器用于检测所述车辆的车速;所述控制器判断所述车辆的油门踏板的开度是否小于或等于预设的第一开度阈值,或者判断所述车辆的刹车踏板的开度是否大于或等于预设的第二开度阈值;若所述油门踏板的开度小于或等于所述第一开度阈值或者所述刹车踏板的开度大于或等于所述第二开度阈值,则所述控制器进一步判断所述车辆的车速是否大于或等于预设的速度阈值;若所述车辆的车速大于或等于所述速度阈值,则启动所述车辆的制动能量回馈功能,并根据所述动力电池的电量判断所述动力电池是否满足制动能量接收条件。The vehicle of claim 15 wherein said brake energy feedback system further comprises a second sensor and a third sensor, wherein said second sensor is operative to detect an opening or a position of an accelerator pedal of said vehicle Describes an opening degree of a brake pedal of the vehicle, the third sensor is configured to detect a vehicle speed of the vehicle; and the controller determines whether an opening degree of the accelerator pedal of the vehicle is less than or equal to a preset first opening threshold, Or determining whether the opening degree of the brake pedal of the vehicle is greater than or equal to a preset second opening degree threshold; if the opening degree of the accelerator pedal is less than or equal to the first opening degree threshold or the opening of the brake pedal The controller further determines whether the vehicle speed of the vehicle is greater than or equal to a preset speed threshold; if the vehicle speed of the vehicle is greater than or equal to the speed threshold, the startup is greater than or equal to the second opening threshold The braking energy feedback function of the vehicle is described, and it is determined whether the power battery satisfies the braking energy receiving condition according to the power of the power battery.
- 根据权利要求15所述的车辆,其特征在于,所述控制器判断所述动力电池的电量是否小于或等于预设的电量阈值;若所述动力电池的电量小于或等于所述电量阈值,则判定满足所述制动能量接收条件;若所述动力电池的电量大于所述电量阈值,则不满足所述制动能量接收条件。The vehicle according to claim 15, wherein the controller determines whether the power of the power battery is less than or equal to a preset power threshold; if the power of the power battery is less than or equal to the power threshold, It is determined that the braking energy receiving condition is satisfied; if the power of the power battery is greater than the power threshold, the braking energy receiving condition is not satisfied.
- 根据权利要求15所述的车辆,其特征在于,在将所述制动能量回馈给所述车辆的用电设备的情况下,所述控制器根据所述制动能量的功率调整所述用电设备的功率,其中所述制动能量的功率越大,调整后的所述用电设备的功率越大。The vehicle according to claim 15, wherein in the case of feeding back the braking energy to the electric device of the vehicle, the controller adjusts the power according to the power of the braking energy The power of the device, wherein the greater the power of the braking energy, the greater the power of the adjusted electrical device.
- 根据权利要求18所述的车辆,其特征在于,所述控制器将所述用电设备的功率调整成等于或大于所述制动能量的功率。The vehicle according to claim 18, wherein said controller adjusts power of said powered device to be equal to or greater than power of said braking energy.
- 根据权利要求18所述的车辆,其特征在于,所述用电设备是空调***,当所述空调***未被启动时,则所述控制器控制所述空调***的风扇保持关闭状态,并开启所述空调***的制冷部件或制热部件,当所述空调***处于制冷状态时,则所述控制器启动所述空调***的制热部件,并提升所述空调***的制冷元件的功率;当所述空调***处于制热状态时,则所述控制器启动所述空调***的制冷部件,并提升所述空调***的制热元件的功率,进而在满足用户设定温度要求的情况下利用所述空调***消耗所述制动能量。The vehicle according to claim 18, wherein said electric device is an air conditioning system, and when said air conditioning system is not activated, said controller controls said fan of said air conditioning system to remain off and open a cooling component or a heating component of the air conditioning system, when the air conditioning system is in a cooling state, the controller activates a heating component of the air conditioning system, and boosts a power of the refrigeration component of the air conditioning system; When the air conditioning system is in a heating state, the controller activates a cooling component of the air conditioning system, and boosts power of the heating element of the air conditioning system, thereby utilizing the user's set temperature requirement. The air conditioning system consumes the braking energy.
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