CN114643865B - Power-on method and device and automobile - Google Patents
Power-on method and device and automobile Download PDFInfo
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- CN114643865B CN114643865B CN202011503932.XA CN202011503932A CN114643865B CN 114643865 B CN114643865 B CN 114643865B CN 202011503932 A CN202011503932 A CN 202011503932A CN 114643865 B CN114643865 B CN 114643865B
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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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a power-on method and device and an automobile, and relates to the field of automobile control. The method comprises the following steps: and taking the default power-on mode as the current power-on mode, timing after the corresponding power-on operation is completed, determining whether a running signal or a mode change signal is received within a timing time period, and sending a power-down signal to the whole vehicle controller under the condition that the running signal is not received and the mode change signal is not received within the timing time period so as to enable the whole vehicle controller to control the whole vehicle to power down. According to the invention, under the condition that a user does not charge high-voltage electricity for a long time or stays for a long time, the whole vehicle is automatically powered down, so that feeding of a low-voltage storage battery caused by long-time non-charging of high-voltage electricity in a low-voltage power-on mode is avoided; the problem that the power battery can continuously discharge due to long-time non-running in the high-voltage power-on mode is avoided, so that the dynamic property and economical efficiency of the vehicle are improved, the experience of a user is indirectly improved, and the high-voltage power-on system has high practical value.
Description
Technical Field
The invention relates to the field of automobile control, in particular to a power-on method and device and an automobile.
Background
Along with the increasingly obvious phenomenon of energy shortage, the call for new energy development in all countries of the world is stronger, and China is a great support for the development of the new energy automobile industry through various policies. Along with the rapid promotion of the current new energy automobile market and the national science and technology level, the current new energy automobile is more and more intelligent, so the intelligent extremely simplified power-on function of various vehicles is derived aiming at the power-on function, and the customers can use the vehicles conveniently.
At present, for pole simple power-on, there are mainly two modes of low power-on and high power-on. In the low-voltage power-on mode, after a user opens a vehicle door to get on a vehicle, a low-voltage storage battery provides a working power supply for a low-voltage electric appliance in the vehicle so that the low-voltage electric appliance can be normally used; in the high-voltage power-on mode, after a user opens the vehicle door to get on, the relay of the power battery is closed to finish high-voltage power-on, and at the moment, both the high-voltage and low-voltage electric appliances can be normally used.
However, in the two power-on modes, in the low-voltage power-on mode, if a user does not power on high-voltage power for a long time after getting on the vehicle, the power feed of the low-voltage storage battery is caused; in the high-voltage power-on mode, if a user stays for a long time after getting on the vehicle and the vehicle does not run, the power battery can continuously discharge, so that the initial electric quantity of the power battery is lower, and the power performance and the economical efficiency of the vehicle are reduced.
Disclosure of Invention
The present invention has been made in view of the above problems, and provides a method, apparatus for power-up and an automobile which overcome or at least partially solve the above problems.
In a first aspect, an embodiment of the present invention provides a method for powering up, where the method is applied to a vehicle body electronic domain control unit, and the method includes:
And taking the default power-on mode as the current power-on mode, and timing after the corresponding power-on operation is completed, wherein the default power-on mode comprises: a low power-on mode or a high power-on mode;
determining whether a running signal or a mode changing signal is received within a timing duration, wherein the mode changing signal is a signal for changing the default power-on mode;
and under the condition that the running signal is not received and the mode changing signal is not received in the timing duration, sending a power-down signal to the whole vehicle controller so that the whole vehicle controller controls the whole vehicle to power down.
Optionally, before the default power-up mode is taken as the current power-up mode and the corresponding power-up operation is completed, the method further includes:
and receiving the timing duration sent by the vehicle-mounted host, wherein the timing duration is determined according to the standby duration for maintaining the power-on state of the whole vehicle.
Optionally, in the case that the driving signal is received in the timing duration, the method further includes:
Sending a starting signal to a whole vehicle controller so that the whole vehicle controller controls the whole vehicle to start and start running;
wherein, when the default power-on mode is the low-voltage power-on mode, the driving signal is a brake stepping signal;
And when the default power-on mode is the high-voltage power-on mode, the driving signal is a gear signal of a D gear or an R gear.
Optionally, in the case that the mode change signal is received in the timing duration, the method further includes:
Changing the current power-on mode according to the mode changing signal, and performing related operation according to the power-on state corresponding to the changed power-on mode;
After changing the current power-on mode, a new round of timing is performed, and the steps are executed: and determining whether a running signal or a mode change signal is received in the new round of timing duration.
Optionally, after the whole vehicle controller controls the whole vehicle to start and start running, the method further comprises:
the mode changing signal is received, and the changed power-on mode is set as a default power-on mode;
And after the whole vehicle stops running and is powered down, when the power is powered up again, the corresponding power-up operation is completed in a set default power-up mode, and timing is performed.
In a second aspect, an embodiment of the present invention provides a device for powering up, the device being applied to a vehicle body electronic domain control unit, the device including:
the power-on timing module is used for timing after finishing corresponding power-on operation by taking a default power-on mode as a current power-on mode, wherein the default power-on mode comprises: a low power-on mode or a high power-on mode;
The signal receiving determining module is used for determining whether a running signal or a mode changing signal is received within the timing duration, wherein the mode changing signal is a signal for changing the default power-on mode;
the power-off signal sending module is used for sending a power-off signal to the whole vehicle controller under the condition that the driving signal is not received and the mode change signal is not received in the timing duration, so that the whole vehicle controller controls the whole vehicle to be powered off.
Optionally, the apparatus further comprises:
the receiving duration module is used for receiving the timing duration sent by the vehicle-mounted host, and the timing duration is determined according to the standby duration for maintaining the power-on state of the whole vehicle.
Optionally, the apparatus further comprises:
The starting signal sending module is used for sending a starting signal to the whole vehicle controller so that the whole vehicle controller controls the whole vehicle to start and start running;
wherein, when the default power-on mode is the low-voltage power-on mode, the driving signal is a brake stepping signal;
And when the default power-on mode is the high-voltage power-on mode, the driving signal is a gear signal of a D gear or an R gear.
Optionally, the apparatus further comprises:
the changing module is used for changing the current power-on mode according to the mode changing signal and carrying out related operation according to the power-on state corresponding to the changed power-on mode;
The execution module is used for carrying out a new round of timing after changing the current power-on mode, and executing the following steps: and determining whether a running signal or a mode change signal is received in the new round of timing duration.
Optionally, the apparatus further comprises:
The default setting module is used for receiving the mode changing signal and setting the changed power-on mode as a default power-on mode;
the power-on timing module is further used for: and after the whole vehicle stops running and is powered down, when the power is powered up again, the corresponding power-up operation is completed in a set default power-up mode, and timing is performed.
In a third aspect, an embodiment of the present invention provides an automobile, including: a body electronics domain control unit;
the body electronics domain control unit performs the method of powering up as described in any of the first aspects above.
According to the power-on method provided by the invention, a vehicle body electronic domain control unit (KBCM) takes a default power-on mode (a low-voltage power-on mode or a high-voltage power-on mode) as a current power-on mode, after the corresponding power-on operation is completed, timing is started, and in the timing time length, KBCM determines whether a running signal is received or a signal for changing the default power-on mode is received; and under the condition that the running signal is not received and the mode changing signal is not received in the timing duration, sending a power-down signal to the whole vehicle controller (VCU or HCU) so that the whole vehicle controller controls the whole vehicle to power down. By the mode, the whole vehicle can be automatically powered down under the condition that a user does not power up high voltage electricity for a long time or stays for a long time, and feeding of a low-voltage storage battery in the current low-voltage power-up mode is avoided; in the high-voltage power-on mode, the power battery can continuously discharge, so that the power performance and economy of the vehicle are improved, the experience of a user is indirectly improved, and the high-voltage power-on system has high practical value.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method of powering up in accordance with an embodiment of the present invention;
Fig. 2 is a block diagram of a powered device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a flowchart of a method of powering up is shown in an embodiment of the present invention. The method is applied to a vehicle body electronic domain control unit, and specifically comprises the following steps:
step 101: and taking the default power-on mode as the current power-on mode, and timing after the corresponding power-on operation is completed, wherein the default power-on mode comprises: a low power-on mode or a high power-on mode.
In the embodiment of the invention, in general, when the vehicle leaves the factory, a default power-on mode exists, and the mode can be a low-voltage power-on mode or a high-voltage power-on mode. After purchasing the vehicle, the user can change or not change the default power-on mode according to the own requirement. When the user changes by himself, the user can select the user through a vehicle-mounted host (Head Unit System abbreviated as HUT).
When a user needs to use the vehicle, after the door of the vehicle is opened, a vehicle body electronic domain control unit (product Elec Region Control System Body integrated by PEPS and BCM is KBCM for short) can default power-on mode to be the current power-on mode, so that corresponding power-on operation is automatically completed, and after the corresponding power-on operation is completed, KBCM is timed.
For example: in a normal low-voltage power-up mode, after a user opens a door of a vehicle, KBCM controls the vehicle to perform low-voltage power-up, a low-voltage battery of the vehicle supplies power to a low-voltage electric appliance, and then KBCM starts timing. In the high-voltage power-on mode, when a user opens a door of a vehicle, KBCM controls a low-voltage storage battery of the vehicle to supply power to a low-voltage electric appliance, and simultaneously, a high-voltage power-on signal is generated for the whole vehicle controller, after the whole vehicle controller receives the high-voltage power-on signal, the parts of the power system are controlled to enter a high-voltage state and activate a torque framework, meanwhile, a Battery Management System (BMS) controls a high-voltage relay to be closed, and then KBCM starts to time.
In the embodiment of the invention, the timing time is sent to KBCM by the HUT, the vehicle leaves the factory with a preset timing time, and the user can reset the timing time by the HUT, wherein the timing time is determined according to the standby time for maintaining the power-on state of the whole vehicle.
Step 102: and determining whether a running signal or a mode changing signal is received within the timing duration, wherein the mode changing signal is a signal for changing a default power-on mode.
In the embodiment of the present invention, in the process of performing the time counting at KBCM, it is required to determine whether a driving signal or a mode change signal is received in the whole time counting period, where the mode change signal is a signal for changing the default power-on mode. The travel signal is a signal that requires the vehicle to start traveling.
For example: the original default power-on mode is the low power-on mode, then the user needs to change the low power-on mode into the high power-on mode, and then after the user selects through the HUT, the HUT can send a mode change signal to KBCM.
Step 103: and under the condition that the running signal is not received and the mode changing signal is not received in the timing duration, sending a power-down signal to the whole vehicle controller so that the whole vehicle controller controls the whole vehicle to power down.
In the embodiment of the invention, KBCM determines that the running signal is not received and the mode change signal is not received within the whole timing duration, then the user considers that the requirement of running the vehicle is not met temporarily, KBCM sends a power-down signal to the whole vehicle controller, and the whole vehicle controller can control the whole vehicle to power down after receiving the power-down signal.
If the vehicle is powered on in a low-voltage power-on mode, after the whole vehicle controller receives the power-on signal, the low-voltage storage battery is controlled to stop supplying power to the piezoelectric device; assuming that the vehicle is powered up in a high voltage power-up mode, when the whole vehicle controller receives the power-down signal, the parts of the power system are controlled to exit the high voltage state and freeze the torque architecture, and meanwhile, the BMS controls the high voltage relay to be disconnected.
By the mode, the whole vehicle can be automatically powered down under the condition that a user does not charge high-voltage electricity for a long time or stays for a long time, so that feeding of a low-voltage storage battery caused by long-time non-charging of high-voltage electricity in a low-voltage power-on mode is avoided; the problem that the power battery can continuously discharge due to long-time non-running under the high-voltage power-on mode is avoided, and therefore the dynamic property and economical efficiency of the vehicle are improved.
In the above process, if KBCM receives the running signal within the time duration, KBCM stops timing and sends a start signal to the whole vehicle controller at the same time, so that the whole vehicle controller controls the whole vehicle to start and start running.
For the low-voltage power-on mode, the running signal can be a brake-down signal, when a user steps down on the brake, KBCM receives the brake-down signal, then KBCM sends a starting signal to the whole vehicle controller, the whole vehicle controller receives the starting signal, firstly, the parts of the braking system are required to be controlled to enter a high-voltage state and the torque framework is activated, meanwhile, the BMS controls the high-voltage relay to be closed, and when the user shifts to D gear or R gear, the brake is released, and the vehicle can start running according to the shifted gear.
For the high-voltage power-on mode, the driving signal can be a gear signal of a D gear or an R gear, because in the high-voltage power-on mode, parts of the power system are in a high-voltage state, the torque framework is also activated, and the high-voltage relay is also closed, so that a user only needs to shift to the D gear or the R gear, and the vehicle can start to drive according to the shifted gear.
In another case, if the mode change signal is received in the timing duration KBCM, KBCM changes the current power-on mode, and performs the related operation according to the power-on state corresponding to the changed power-on mode.
For example: the original default power-on mode is a low-voltage power-on mode, KBCM starts timing after power-on operation is performed according to the low-voltage power-on mode, KBCM receives a mode change signal in timing duration, the default power-on mode is required to be changed into a high-voltage power-on mode, KBCM stops timing, related operations are performed according to a power-on state corresponding to the high-voltage power-on mode, so that power system parts enter a high-voltage state, a torque architecture is activated, a high-voltage relay is closed, a new round of timing is started after the power-on state corresponding to the high-voltage power-on mode is reached, and the following steps are executed: and determining whether a running signal or a mode change signal is received in the new round of timing duration. When the user selects to change the default power-on mode, the user can reset the time duration, or not reset the time duration, and still use the previous time duration. However, in either case, when the default power-on mode is changed, a new round of timing is required according to the timing duration.
Naturally, if the original default power-on mode is the high-voltage power-on mode, KBCM starts timing after performing power-on operation according to the high-voltage power-on mode, and in the timing duration, KBCM receives a mode change signal, and needs to change the default power-on mode into the low-voltage power-on mode, KBCM stops timing, performs related operations according to the power-on state corresponding to the low-voltage power-on mode, so that the power system component exits from the high-voltage state, the torque architecture is frozen, the high-voltage relay is disconnected, and starts to perform a new round of timing after reaching the power-on state corresponding to the low-voltage power-on mode, and performs the steps of: and determining whether a running signal or a mode change signal is received in the new round of timing duration.
In another case, if the person on the assistant driver resets the default power-on mode through the HUT during the driving of the vehicle, then KBCM receives the mode change signal, but since the vehicle is in the driving process at this time, KBCM sets the changed power-on mode to the default power-on mode, but does not perform the operation related to the change of the power-on mode, and after the whole vehicle stops driving and is powered down, when the vehicle is powered up again, KBCM completes the corresponding power-on operation in the reset default power-on mode and performs timing.
Based on the above power-up method, the embodiment of the present invention further provides a power-up device, which is applied to a vehicle body electronic domain control unit, and referring to fig. 2, a block diagram of the power-up device according to the embodiment of the present invention is shown, where the device includes:
The power-on timing module 210 is configured to perform timing after completing a corresponding power-on operation by taking a default power-on mode as a current power-on mode, where the default power-on mode includes: a low power-on mode or a high power-on mode;
A received signal determining module 220, configured to determine whether a driving signal or a mode change signal is received within a timing duration, where the mode change signal is a signal for changing the default power-on mode;
And the lower electric signal sending module 230 is configured to send a lower electric signal to the whole vehicle controller when the running signal is not received and the mode change signal is not received within the timing duration, so that the whole vehicle controller controls the whole vehicle to be powered down.
Optionally, the apparatus further comprises:
the receiving duration module is used for receiving the timing duration sent by the vehicle-mounted host, and the timing duration is determined according to the standby duration for maintaining the power-on state of the whole vehicle.
Optionally, the apparatus further comprises:
The starting signal sending module is used for sending a starting signal to the whole vehicle controller so that the whole vehicle controller controls the whole vehicle to start and start running;
wherein, when the default power-on mode is the low-voltage power-on mode, the driving signal is a brake stepping signal;
And when the default power-on mode is the high-voltage power-on mode, the driving signal is a gear signal of a D gear or an R gear.
Optionally, the apparatus further comprises:
the changing module is used for changing the current power-on mode according to the mode changing signal and carrying out related operation according to the power-on state corresponding to the changed power-on mode;
The execution module is used for carrying out a new round of timing after changing the current power-on mode, and executing the following steps: and determining whether a running signal or a mode change signal is received in the new round of timing duration.
Optionally, the apparatus further comprises:
The default setting module is used for receiving the mode changing signal and setting the changed power-on mode as a default power-on mode;
the power-on timing module is further used for: and after the whole vehicle stops running and is powered down, when the power is powered up again, the corresponding power-up operation is completed in a set default power-up mode, and timing is performed.
The embodiment of the invention also provides an automobile, which comprises: a body electronics domain control unit; the body electronics domain control unit performs the power-up method described in any one of the above steps 101 to 103.
Through the above embodiment, in the method for powering up the vehicle body electronic domain control unit (KBCM) according to the embodiment of the present invention, the default powering up mode (low-voltage powering up mode or high-voltage powering up mode) is used as the current powering up mode, after the corresponding powering up operation is completed, timing is started, and in the timing duration, KBCM determines whether a driving signal is received or a signal for changing the default powering up mode is received; if the running signal is received in the timing time, controlling the vehicle to start running according to a corresponding method; and if the mode changing signal is received in the timing duration, changing the current power-on state to the power-on state corresponding to the changed power-on mode, and restarting timing. And under the condition that the running signal is not received and the mode changing signal is not received in the timing duration, sending a power-down signal to the whole vehicle controller (VCU or HCU) so that the whole vehicle controller controls the whole vehicle to power down. By the mode, the whole vehicle can be automatically powered down under the condition that a user does not charge high-voltage electricity for a long time or stays for a long time, so that feeding of a low-voltage storage battery caused by long-time non-charging of high-voltage electricity in a low-voltage power-on mode is avoided; the problem that the power battery can continuously discharge due to long-time non-running in a high-voltage power-on mode is avoided, so that the dynamic property and economical efficiency of the vehicle are improved, the experience of a user is indirectly improved, and the high-voltage power-on system has high practical value.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (8)
1. A method of powering up, the method being applied to a body electronics domain control unit, the method comprising:
And taking the default power-on mode as the current power-on mode, and timing after the corresponding power-on operation is completed, wherein the default power-on mode comprises: a low power-on mode or a high power-on mode;
determining whether a running signal or a mode changing signal is received within a timing duration, wherein the mode changing signal is a signal for changing the default power-on mode;
under the condition that the running signal is not received and the mode changing signal is not received within the timing duration, sending a power-down signal to the whole vehicle controller so that the whole vehicle controller controls the whole vehicle to power down;
in the case that the driving signal is received in the timing duration, the method further includes:
Sending a starting signal to a whole vehicle controller so that the whole vehicle controller controls the whole vehicle to start and start running;
wherein, when the default power-on mode is the low-voltage power-on mode, the driving signal is a brake stepping signal;
And when the default power-on mode is the high-voltage power-on mode, the driving signal is a gear signal of a D gear or an R gear.
2. The method of claim 1, wherein the default power-up mode is the current power-up mode, and wherein prior to completion of the corresponding power-up operation, the method further comprises:
and receiving the timing duration sent by the vehicle-mounted host, wherein the timing duration is determined according to the standby duration for maintaining the power-on state of the whole vehicle.
3. The method of claim 1, wherein in the event that the mode change signal is received within the timed period, the method further comprises:
Changing the current power-on mode according to the mode changing signal, and performing related operation according to the power-on state corresponding to the changed power-on mode;
After changing the current power-on mode, a new round of timing is performed, and the steps are executed: and determining whether a running signal or a mode change signal is received in the new round of timing duration.
4. The method of claim 1, wherein after the vehicle controller controls the vehicle to start and begin traveling, the method further comprises:
the mode changing signal is received, and the changed power-on mode is set as a default power-on mode;
And after the whole vehicle stops running and is powered down, when the power is powered up again, the corresponding power-up operation is completed in a set default power-up mode, and timing is performed.
5. A device for powering up, the device being applied to a body electronics domain control unit, the device comprising:
the power-on timing module is used for timing after finishing corresponding power-on operation by taking a default power-on mode as a current power-on mode, wherein the default power-on mode comprises: a low power-on mode or a high power-on mode;
The signal receiving determining module is used for determining whether a running signal or a mode changing signal is received within the timing duration, wherein the mode changing signal is a signal for changing the default power-on mode;
The power-off signal sending module is used for sending a power-off signal to the whole vehicle controller under the condition that the running signal is not received and the mode change signal is not received within the timing duration, so that the whole vehicle controller controls the whole vehicle to be powered off;
The apparatus further comprises:
The starting signal sending module is used for sending a starting signal to the whole vehicle controller so that the whole vehicle controller controls the whole vehicle to start and start running;
wherein, when the default power-on mode is the low-voltage power-on mode, the driving signal is a brake stepping signal;
And when the default power-on mode is the high-voltage power-on mode, the driving signal is a gear signal of a D gear or an R gear.
6. The apparatus of claim 5, wherein the apparatus further comprises:
the receiving duration module is used for receiving the timing duration sent by the vehicle-mounted host, and the timing duration is determined according to the standby duration for maintaining the power-on state of the whole vehicle.
7. The apparatus of claim 5, wherein the apparatus further comprises:
the changing module is used for changing the current power-on mode according to the mode changing signal and carrying out related operation according to the power-on state corresponding to the changed power-on mode;
The execution module is used for carrying out a new round of timing after changing the current power-on mode, and executing the following steps: and determining whether a running signal or a mode change signal is received in the new round of timing duration.
8. An automobile, the automobile comprising: a body electronics domain control unit;
the body electronics domain control unit performs the method of powering up as set forth in any one of claims 1-4.
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| CN109249811A (en) * | 2018-08-29 | 2019-01-22 | 北京新能源汽车股份有限公司 | Electric automobile high-voltage power-on and power-off control method and device and automobile |
| CN111791746A (en) * | 2020-06-30 | 2020-10-20 | 中国第一汽车股份有限公司 | Flexible battery replacement system and method for vehicle, electronic device and storage medium |
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