CN201268288Y - Entire vehicle power supply management unit - Google Patents
Entire vehicle power supply management unit Download PDFInfo
- Publication number
- CN201268288Y CN201268288Y CNU2008201527341U CN200820152734U CN201268288Y CN 201268288 Y CN201268288 Y CN 201268288Y CN U2008201527341 U CNU2008201527341 U CN U2008201527341U CN 200820152734 U CN200820152734 U CN 200820152734U CN 201268288 Y CN201268288 Y CN 201268288Y
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- car load
- battery
- load
- electric power
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- Control Of Charge By Means Of Generators (AREA)
Abstract
The utility model relates to a complete vehicle power supply management device which comprises batteries, a generator, a motor control module, a load and a vehicle body control module and is characterized in that the batteries, the generator, the motor control module, the load and the vehicle body control module are connected in a bus communication way. The utility model has the advantages of battery performance maintenance, battery life prolongation, load protection, oil consumption reduction, motor efficiency improvement, agile demarcation and possibility of transplantation.
Description
Technical field
The utility model relates to a kind of car load electric power controller.
Background technology
Fierce day by day automotive market competition has all proposed more and more higher requirement to the reduction of the intelligent hommization control of automobile function, automobile components and parts performance maintenance, life-span prolongation and oil consumption, the utility model patent car load power-supply management system is exactly a kind of novel intelligent, simultaneously can improve battery and load bulb, the life-span of switch, the novel power supply management system of reduction oil consumption.
As shown in Figure 1, for guarantee each load of vehicle can be under the whole vehicle state of any environment normal operation, and guarantee effective charging of battery, the electrical generator 2 of existing vehicle is controlled at vehicle voltage a higher fixed value (14～14.5V), and vehicle voltage control can not be followed battery status, load state and ambient temperature situation and regulated usually.Like this, unnecessary sometimes car load high potential can increase the oil consumption of car load, and the voltage fluctuation of uncontrolled car load also can reduce the life-span of bulb and switch in the load 4.The battery 1 that is in charge condition or power shortage state for a long time also can reduce the life-span.The optimal voltage of battery 1 can't intelligence be controlled flexibly under various ambient temperatures and the various charge condition, is unfavorable for the performance and the maintenance of battery 1.Uncontrollable battery 1 lasting power shortage state can cause serious battery 1 deficit under the high capacity, possibly can't start vehicle once more, also badly damaged battery 1.
The utility model content
The purpose of this utility model is to provide a kind of car load electric power controller that can overcome above-mentioned shortcoming.
Car load electric power controller of the present utility model, comprise battery, electrical generator, engine control module, load and Body control module, wherein, described battery, electrical generator, engine control module, load and Body control module are connected by bus communication, form close loop control circuit.
Preferably, be connected for high-speed CAN bus between described Body control module and the described engine control module.
Preferably, be connected by pwm signal between described engine control module and the described electrical generator.
Preferably, between described Body control module and the described load be low speed CAN bus or IO control linkage.
Preferably, be the data acquisition wire joint between described Body control module and the described battery.
Preferably, described car load electric power controller also comprises Driver Information Center, and described Driver Information Center shows car load power management states and diagnosis control.
Car load electric power controller of the present utility model can be controlled vehicle voltage, can demarcate various state optimization values by experiment, can be to the car load load under necessary state, the car load power supply manages, support various controlled variable to demarcate again, therefore, usefulness of the present utility model is: the battery maintenance performance extends the life of a cell; The protection load; Reduce oil consumption; Improve the efficient of electrical generator; Flexible calibration, portable.
Description of drawings
In order to understand the utility model better, with reference to the following drawings:
Fig. 1 shows the scheme drawing of vehicle voltage control in the prior art;
Fig. 2 shows the scheme drawing of car load electric power controller of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
As shown in Figure 2, car load electric power controller of the present utility model comprises battery 1, electrical generator 2, engine control module 3, load 4 and Body control module 5.This device calculates by bus communication and data acquisition, forms the closed loop control system of an intelligence, can realize vehicle voltage control, power management and load control two big radical functions.
Voltage control is meant that Body control module 5 is at different car load battery statuss, under the load model, control different car load target voltages, be set at than low value 13V under for example fuel-efficient pattern, when headlight is opened, be set at the voltage 13.9 or 14.5 (target voltage is set and can be demarcated) that is fit to headlight work, Body control module 5 is converted to this target voltage values the dutycycle bus signals of control electrical generator 2 simultaneously, at high speed CAN bus signals form sends to engine control module 3, engine control module 3 is with the output voltage of the pwm signal control electrical generator 2 of this dutycycle, Body control module 5 comes the actual vehicle voltage of real time monitoring by real-time collection vehicle voltage simultaneously, and it is made comparisons with the mark magnitude of voltage in real time, reach target voltage control thereby adjust its electrical generator 2 control dutycycle bus signals in real time according to its difference.
More specifically, battery quiescent voltage and ambient temperature during vehicle voltage control system collection vehicle wake-up states, according to of the demarcation of the experimental performance parameter of battery when various quiescent voltages and all temps, utilize line to insert the initial state of charge (StratupSOC) that method calculates battery at Body control module.Body control module is gathered the battery charging and discharging electric current, follow the tracks of the real time charging state (SOC) of counting cell, real time charging state according to battery, ambient temperature and car load loading condition, the car load power supply is controlled at different pattern (fuel-efficient pattern, reduction pattern and normal mode) at different mode of operations, controls different car load target voltages.
Concrete pattern operating mode is as follows:
Fuel-efficient pattern:
Battery charging state SOC〉80% (can demarcate),
Ambient temperature 〉=0 ℃ and≤70 ℃ (all can demarcate),
Battery current 〉=-8A and≤15A (all can demarcate)
The speed of a motor vehicle≤145Km/h (can demarcate)
No low voltage (≤11V), inerrancy code report (sensor line diagnosis)
The target voltage values of car load is 13V (can demarcate) under the fuel-efficient pattern, and the car load battery status lower voltage control of situation preferably can be realized the oil-efficient purpose.
Fuel-efficient pattern can be divided into fuel-efficient pattern of headlight and the fuel-efficient pattern of windscreen wiper according to headlight or windscreen wiper unlatching situation again, can be controlled at different nominal voltage values (13.9V) respectively.
Normal mode:
Any situation that does not belong to fuel-efficient pattern or reduction pattern becomes normal mode, target voltage values under the normal mode is according to the demarcation of battery performance parameter at Body control module, use 4 lines to insert the computing formula of method simultaneously, can obtain the target voltage values of various states.
The reduction pattern:
Battery current 〉=-7A and≤2A (all can demarcate)
Ambient temperature 〉=0 ℃ (can demarcate)
The non-full load of electrical generator (electrical generator actual power state RWM issues Body control module by ECM at high speed CAN signal).
Under the reduction pattern, the target voltage magnitude of voltage is that the target voltage values under the normal mode multiply by the coefficient that can demarcate (＜1), and the low voltage under the low loading condition of car load also can realize to a certain degree fuel-efficient.
In addition, the control of target voltage values under the various patterns, but the requirement of integrated load control voltage optimization, battery status and environment optimization require to demarcate setting, can farthest protect load and battery.
Body control module is by the PWM output duty cycle of high-speed CAN bus information Control engine control module, thus the output voltage of control electrical generator, control car load optimal voltage under various states.Body control module is also gathered the vehicle voltage value in real time simultaneously, makes comparisons with target voltage values, thereby adjusts the PWM output duty cycle that high-speed CAN bus information is adjusted engine control module according to both differences, reaches target voltage with the control car load.
When vehicle voltage reached target control voltage, system will control the electric current of battery, entered into a kind of current closed-loop control algorithm (when electrical generator full load or system's appearance mistake, withdrawing from this master mode).The charging and discharging currents of the real-time battery of Body control module collection, deviation according to the relative null value of electric current, (setting data counter range within the specific limits, adjust based on counting deviation) adjust the PWM output duty cycle of high-speed CAN bus information Control engine control module, thereby the output voltage of control electrical generator, when deviation＜0, improve the defeated car voltage of electrical generator, vice versa.Make battery be in the state that a nothing discharges and recharges so as far as possible.With the performance of battery maintenance, improve the service life of battery.
Power management and load control are meant according to battery 1 state and load 4 states, suitably adjust the engine idle rotating speed under corresponding state, adjust the car load load.At high speed CAN bus signals form sends to engine control module 3 and adjusts engine speed; Control each load blocks with low speed CAN bus or I/O rigid line direct control mode,, prevent the serious power shortage of battery, the protection battery to realize car load generating capacity and load balance.
More specifically, by the charging and discharging currents of monitoring battery, the degree that discharges and recharges of battery and the voltage of car load, the car load power-supply management system is adjusted the revolution and the car load load of electrical generator intelligently with six grades.When system reaches first group, during the calibration value of second group of grade, can suitably improve the revolution of driving engine, thus the output that improves electrical generator, to alleviate the power shortage of system.When battery continuation power shortage reached the 3rd group of calibration value, the load of the non-safety requirements of system's suitable closed portion of meeting reduced power consumption and continues alleviation system power shortage.Reach the 4th group of calibration value if battery continues power shortage, driving engine will continue to improve revolution, reach the 5th group, the 6th group of calibration value, and system continues to turn off load.When system reached balance or battery charge to cooresponding calibration value, load and engine revolution also can be recovered successively by system.
In addition, car load electric power controller of the present utility model also comprises Driver Information Center, can pass through bus message alerting drivers power management states where necessary, Driver Information Center can provide diagnostic message, the situation of detail knowledge car load power-supply management system.
Numerous controlled variable of this device are set by calibration value, can mate by the change calibration value for different batteries, electrical generator, driving engine and load, and very strong commonality and portability are arranged.
The foregoing description is only for the usefulness that the utility model is described; and be not to be to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the utility model scope; can also make various variations and modification; therefore, all technical schemes that are equal to also should belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.
Claims (6)
1. car load electric power controller, comprise battery, electrical generator, engine control module, load and Body control module, it is characterized in that described battery, electrical generator, engine control module, load and Body control module are connected by bus communication, form close loop control circuit.
2. car load electric power controller according to claim 1 is characterized in that, is connected for high-speed CAN bus between described Body control module and the described engine control module.
3. car load electric power controller according to claim 1 is characterized in that, is connected by pwm signal between described engine control module and the described electrical generator.
4. car load electric power controller according to claim 1 is characterized in that, is low speed CAN bus or IO control linkage between described Body control module and the described load.
5. car load electric power controller according to claim 1 is characterized in that, is the data acquisition wire joint between described Body control module and the described battery.
6. car load electric power controller according to claim 1 is characterized in that, also comprises Driver Information Center, and described Driver Information Center shows car load power management states and diagnosis control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201527341U CN201268288Y (en) | 2008-09-03 | 2008-09-03 | Entire vehicle power supply management unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201527341U CN201268288Y (en) | 2008-09-03 | 2008-09-03 | Entire vehicle power supply management unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201268288Y true CN201268288Y (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201527341U Expired - Lifetime CN201268288Y (en) | 2008-09-03 | 2008-09-03 | Entire vehicle power supply management unit |
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| Country | Link |
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| CN (1) | CN201268288Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590757A (en) * | 2012-02-16 | 2012-07-18 | 奇瑞汽车股份有限公司 | Method and device for diagnosing battery level |
| CN105658458A (en) * | 2013-08-27 | 2016-06-08 | Mtu 腓特烈港有限责任公司 | System controller and method for controlling a charging system, which charging system is provided for charging an electrical energy store, charging system, and vehicle |
| CN107901856A (en) * | 2017-10-26 | 2018-04-13 | 中国第汽车股份有限公司 | Halogen lamp input voltage optimal control method |
-
2008
- 2008-09-03 CN CNU2008201527341U patent/CN201268288Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590757A (en) * | 2012-02-16 | 2012-07-18 | 奇瑞汽车股份有限公司 | Method and device for diagnosing battery level |
| CN102590757B (en) * | 2012-02-16 | 2014-08-27 | 奇瑞汽车股份有限公司 | Method and device for diagnosing battery level |
| CN105658458A (en) * | 2013-08-27 | 2016-06-08 | Mtu 腓特烈港有限责任公司 | System controller and method for controlling a charging system, which charging system is provided for charging an electrical energy store, charging system, and vehicle |
| CN105658458B (en) * | 2013-08-27 | 2018-07-13 | Mtu 腓特烈港有限责任公司 | System controller for controlling charging system and its control method |
| US10035503B2 (en) | 2013-08-27 | 2018-07-31 | Mtu Friedrichshafen Gmbh | System control unit and method for controlling a charging system that is provided for charging an electrical energy storage device, as well as charging system and vehicle |
| CN107901856A (en) * | 2017-10-26 | 2018-04-13 | 中国第汽车股份有限公司 | Halogen lamp input voltage optimal control method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090708 |