CN101618720B - Control method of whole car controller of hybrid electric car - Google Patents
Control method of whole car controller of hybrid electric car Download PDFInfo
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Abstract
The invention aims at providing a control method of a whole car controller of a hybrid electric car which saves electricity and can lead the car to start fast. The control method comprises a normal work mode and a sleep mode; under the normal work mode, when a key is switched into an off state from an on state and is kept for a certain time; the whole car controller is switched to the sleep mode from the normal work mode; under the sleep mode, in the whole car controller, only specific modules are kept to work, the rest of modules are closed; and when a waking condition is met, the whole car controller enters the normal work mode. The control method of the whole car controller of the hybrid electric car reduces the electric energy consumption of the whole car controller of the hybrid electric car by setting the sleep mode, simultaneously avoids electrifying initiation of software each time, reduces the waiting time of starting of the hybrid electric car and has important significance for improving success rate of cold starting of the hybrid electric car.
Description
Technical field
The invention belongs to hybrid vehicle control technology field, specially refer to the control method of entire car controller.
Background technology
Along with development of science and technology, increasing electronics package and equipment are applied to automotive field, and entire car controller wherein is one of visual plant of automobile, are undertaking the important task of controlling other equipment.If in KEYOFF, turn off the power supply of entire car controller, so, the entire car controller that at every turn powers on all will carry out initialization again, want at least can have a strong impact on the normal run up time of car load like this about 400ms consuming time; And if in the time of KEYOFF, still keep the entire car controller normal operation, because of its quiescent current is bigger, can consume the electric energy of automobile batteries greatly, even can run out of battery power and automobile can't normally be started.
Summary of the invention
The control method that the objective of the invention is to propose a kind of power saving and can make the whole car controller of hybrid electric car of automobile quick operated start.
The control method of whole car controller of hybrid electric car of the present invention comprises normal mode of operation and sleep pattern; Under normal mode of operation; When key switched to off-state and keeps certain hour from on-state after, entire car controller switched to sleep pattern from normal mode of operation; Under sleep pattern, entire car controller has only specific modules maintenance work, and all the other modules are closed, and when wake-up condition satisfied, entire car controller entered into normal mode of operation.
Under normal mode of operation; The program of entire car controller is normally moved, in parking request that is checked through chaufeur or long-term Parking request, promptly when key switches to off-state and keeps certain hour from on-state after; Will close the main program circulatory function successively; Like functional modules such as CAN, trouble diagnosing, demarcation, analog input, numeral outputs, withdraw from the main program circulation, carry out sleep pattern; Under sleep pattern; Entire car controller is regularly inquired about wake-up condition, and when wake-up condition satisfied, the hybrid power entire car controller will be waken up; After completion reconfigures phase-locked loop clock, software watchdog and hardware adaptor; Controller gets into normal mode of operation, gets into the main program circulation, has all normal functions of controller.Said method can make entire car controller under sleep pattern, have only crucial module work; Its quiescent current is very little; Therefore reduced the expenditure of energy of entire car controller; When being transformed into normal mode of operation, also need not to reinitialize entire car controller, thereby saved run up time simultaneously by sleep pattern.The entire car controller chip of at present a lot of automobiles all has sleep pattern, only relevant register need be set and get final product, and repeats no more here.
The method that is transformed into normal mode of operation by sleep pattern has following two kinds:
First method is: after entire car controller switched to sleep pattern from normal mode of operation, entire car controller promptly began the timing of timer, after surpassing the schedule time of timer length of one's sleep; Entire car controller is at first reset timer; Carry out self function check then, reexamine the key state after inspection finishes, if key is a closed condition; Then get into sleep pattern again, control timer restarts timing; If key is an on-state, then get into normal mode of operation.
Come the timing wake-up entire car controller through timer; Whether the various functions that can just check an entire car controller at set intervals are all normal; Such as the voltage of power supply, the key parameter of other key components and parts, also have functions such as warning, guarantee the safety of automobile.After checking out above-mentioned functions, if this moment, key still was in closed condition, so just get into sleep pattern again, make the timer reclocking simultaneously, once more entire car controller is waken up up to timer.--the periodical duty state of--waking up----sleep pattern can make entire car controller when guaranteeing automotive safety to above sleep pattern, significantly reduces quiescent current, promptly reduces power consumption.
Above-mentioned timer can for entire car controller resetting pin bonded assembly RC charge-discharge circuit; Said RC charge-discharge circuit is by the vehicle control unit controls charge or discharge: when entire car controller when normal mode of operation switches to sleep pattern; Vehicle control unit controls RC charge-discharge circuit begins discharge; When the level of entire car controller resetting pin was lower than certain value, entire car controller was restarted, and carried out self function check and control the RC charge-discharge circuit to begin charging.This RC charge-discharge circuit response time is fast, and signal stabilization is good, can guarantee entire car controller cyclic transformation between sleep pattern and normal mode of operation.In addition; The method that this RC charge-discharge circuit wakes entire car controller up is to utilize low level to trigger the resetting pin of entire car controller; Restarting entire car controller, is not that chaufeur will start automobile immediately because wake entire car controller this moment up, an urgent demand on therefore having no time; Restart entire car controller and can fully check each item function, guarantee automotive safety.
Above-mentioned RC charge-discharge circuit can be following form: this circuit comprises resistance, electric capacity and receives the discharge switch and the charge switch of vehicle control unit controls; Said resistance and parallelly connected with electric capacity again formation circuit parallel after discharge switch is connected; One end ground connection of said circuit parallel; The other end is divided into two-way, and one the tunnel is connected with the resetting pin of entire car controller, and another road links to each other with power supply through charge switch.The principle of work of foregoing circuit is following: when entire car controller when normal mode of operation switches to sleep pattern, the vehicle control unit controls discharge switch is connected, simultaneously turn off charge switch; Electric capacity begins discharge like this; When the level of entire car controller resetting pin is lower than certain value, trigger resetting pin entire car controller is restarted, carry out self function check and control charge switch and connect; Break off discharge switch simultaneously, make electric capacity begin charging.
Second kind of method that is transformed into normal mode of operation by sleep pattern is: after entire car controller switches to sleep pattern from normal mode of operation; Entire car controller monitoring key state; After key switched to on-state from off-state, entire car controller switched to normal mode of operation from sleep pattern.After key forwarded on-state to, the expression chaufeur will start automobile immediately, and entire car controller switches to normal mode of operation at once, compares the method for restarting entire car controller in the past, can save run up time.
It is above-mentioned that under sleep pattern, still to keep the particular module of normal operation be Clock management module, Input Monitor Connector module and interrupt module; These three module normal operation just can guarantee that entire car controller switches to normal mode of operation in the very short time, and significantly reduce current draw.
Comprehensive above-mentioned two kinds are transformed into the method for normal mode of operation by sleep pattern, preferably adopt following control method to control the conversion of entire car controller between normal mode of operation and sleep pattern, and this method specifically comprises the steps:
A: under normal mode of operation, when key switched to off-state and keeps certain hour from on-state after, entire car controller was closed the module except that particular module, and to set out the circulation zone bit be FALSE, switched to sleep pattern from normal mode of operation;
B: the vehicle control unit controls timer picks up counting;
C: after entire car controller detected key and switches to on-state from off-state, it was TRUE that entire car controller sets out the circulation zone bit, and switches to normal mode of operation from sleep pattern;
D: after entire car controller receives the signal that the timing of timer finishes; Entire car controller is at first reset timer; Carry out self function check then, reexamine out the circulation zone bit after inspection finishes, if the zone bit that goes out to circulate is FALSE; Then get into sleep pattern again, control timer restarts timing; Zone bit is TRUE if go out to circulate, and then gets into normal mode of operation.
In the above-mentioned A step, under normal mode of operation, have only when key switches to off-state and keeps certain hour from on-state after; Entire car controller just switches to sleep pattern from normal mode of operation; Guarantee so only when chaufeur really will stop, just to get into sleep pattern, prevent misoperation when being interfered, get into sleep pattern; Influence the driving of chaufeur, guarantee safety.
The control method of whole car controller of hybrid electric car of the present invention is through being provided with sleep pattern; Reduced the power consumption of whole car controller of hybrid electric car; Avoided the each power-up initializing of software simultaneously; Reduce hybrid vehicle and started wait time, significant to improving hybrid vehicle cold start-up success ratio.
Description of drawings
Fig. 1 is the control method diagram of circuit of embodiment 1;
Fig. 2 is the RC charge-discharge circuit schematic diagram of embodiment 1.
The specific embodiment
Specify the present invention below in conjunction with specific embodiment and accompanying drawing.
Embodiment 1:
As shown in Figure 1, the method for the whole car controller of hybrid electric car of present embodiment comprises the steps:
A: under normal mode of operation; When key switches to off-state and keeps certain hour from on-state after; Entire car controller is closed the module except that particular module; And to set out the circulation zone bit be FALSE, switches to sleep pattern from normal mode of operation, and the above-mentioned time is generally about 1 millisecond;
B: the vehicle control unit controls timer picks up counting;
C: after entire car controller detected key and switches to on-state from off-state, it was TRUE that entire car controller sets out the circulation zone bit, and switches to normal mode of operation from sleep pattern;
D: after entire car controller receives the signal that the timing of timer finishes; Entire car controller is at first reset timer; Carry out self function check then, reexamine out the circulation zone bit after inspection finishes, if the zone bit that goes out to circulate is FALSE; Then get into sleep pattern again, control timer restarts timing; Zone bit is TRUE if go out to circulate, and then gets into normal mode of operation.
As shown in Figure 2; Above-mentioned timer is the RC charge-discharge circuit, and this circuit comprises resistance R 1, capacitor C 1 and receive the discharge switch SW1 and the charge switch SW2 of vehicle control unit controls, said resistance R 1 with after discharge switch SW1 connects again with capacitor C 1 parallelly connected formation circuit parallel; One end ground connection of said circuit parallel; The other end is divided into two-way, and one the tunnel is connected with the resetting pin of entire car controller, and another road links to each other with power supply VCC through charge switch SW2.The principle of work of foregoing circuit is following: when entire car controller when normal mode of operation switches to sleep pattern, vehicle control unit controls discharge switch SW1 connects, simultaneously turn off charge switch SW2; Capacitor C 1 begins discharge through resistance R 1 like this; When the level of entire car controller resetting pin is lower than certain value, trigger resetting pin entire car controller is restarted, carry out self function check and control charge switch SW2 and connect; Break off discharge switch SW1 simultaneously, make capacitor C 1 begin charging.
Claims (3)
1. the control method of a whole car controller of hybrid electric car; Comprise normal mode of operation and sleep pattern; Under normal mode of operation, when key switched to off-state and keeps certain hour from on-state after, entire car controller switched to sleep pattern from normal mode of operation; Under sleep pattern, entire car controller has only specific modules maintenance work, and all the other modules are closed; When wake-up condition satisfied, entire car controller entered into normal mode of operation, after entire car controller switches to sleep pattern from normal mode of operation; Entire car controller promptly begins the timing of timer, and after surpassing the schedule time of timer, entire car controller is at first reset timer length of one's sleep; Carry out self function check then, reexamine the key state after inspection finishes, if key is a closed condition; Then get into sleep pattern again, control timer restarts timing; If key is an on-state, then get into normal mode of operation; It is characterized in that said timer is and entire car controller resetting pin bonded assembly RC charge-discharge circuit; Said RC charge-discharge circuit comprises resistance, electric capacity and receives the discharge switch and the charge switch of vehicle control unit controls; Said resistance and parallelly connected with electric capacity again formation circuit parallel after discharge switch is connected, an end ground connection of said circuit parallel, the other end is divided into two-way; One the tunnel is connected with the resetting pin of entire car controller, and another road links to each other with power supply through charge switch; Said RC charge-discharge circuit is by the vehicle control unit controls charge or discharge: when entire car controller when normal mode of operation switches to sleep pattern; Vehicle control unit controls RC charge-discharge circuit begins discharge; When the level of entire car controller resetting pin was lower than certain value, entire car controller was carried out self function check and is controlled the RC charge-discharge circuit and begins charging.
2. the control method of whole car controller of hybrid electric car according to claim 1 is characterized in that said particular module is Clock management module, Input Monitor Connector module and interrupt module.
3. the control method of whole car controller of hybrid electric car according to claim 1 is characterized in that comprising the steps:
A: under normal mode of operation, when key switches to off-state and keeps certain hour from on-state after,
Entire car controller is closed the module except that particular module, and to set out the circulation zone bit be FALSE, switches to sleep pattern from normal mode of operation;
B: the vehicle control unit controls timer picks up counting;
C: after entire car controller detected key and switches to on-state from off-state, it was TRUE that entire car controller sets out the circulation zone bit, and switches to normal mode of operation from sleep pattern;
D: after entire car controller receives the signal that the timing of timer finishes; Entire car controller is at first reset timer; Carry out self function check then, reexamine out the circulation zone bit after inspection finishes, if the zone bit that goes out to circulate is FALSE; Then get into sleep pattern again, control timer restarts timing; Zone bit is TRUE if go out to circulate, and then gets into normal mode of operation.
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| CN2009100416641A CN101618720B (en) | 2009-08-05 | 2009-08-05 | Control method of whole car controller of hybrid electric car |
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| CN2009100416641A CN101618720B (en) | 2009-08-05 | 2009-08-05 | Control method of whole car controller of hybrid electric car |
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| CN102485524B (en) * | 2010-12-03 | 2014-12-17 | 上海博泰悦臻电子设备制造有限公司 | Power management method and power management system |
| CN102490620A (en) * | 2011-12-26 | 2012-06-13 | 天津清源电动车辆有限责任公司 | Multi-operating mode selection device for electric automobile |
| CN102673421B (en) * | 2012-05-16 | 2014-12-10 | 奇瑞汽车股份有限公司 | Method for switching sleep mode and wakeup mode of electric vehicle control unit and realization circuit thereof |
| CN104071153B (en) * | 2013-03-25 | 2017-02-08 | 北汽福田汽车股份有限公司 | Starting control method for hybrid electric vehicle |
| CN104192149B (en) * | 2014-08-14 | 2016-10-26 | 潍柴动力股份有限公司 | The control method of vehicle operation and device |
| CN108656926B (en) * | 2017-03-31 | 2020-05-19 | 比亚迪股份有限公司 | Whole vehicle control method and power system of hybrid electric vehicle |
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| CN111186330A (en) * | 2018-11-15 | 2020-05-22 | 郑州宇通客车股份有限公司 | Integrated controller low-voltage power supply method, integrated controller device and vehicle |
| CN111942154B (en) * | 2020-07-28 | 2022-03-08 | 广汽埃安新能源汽车有限公司 | Wake-up device for battery management system and vehicle |
| CN112162623A (en) * | 2020-09-30 | 2021-01-01 | 重庆长安汽车股份有限公司 | Method for prolonging standing service life of storage battery of fuel vehicle |
| CN112918411A (en) * | 2021-03-01 | 2021-06-08 | 东风汽车集团股份有限公司 | Power supply control method and system for storage battery after power off of whole vehicle |
| CN116729300B (en) * | 2023-07-31 | 2024-05-03 | 中国第一汽车股份有限公司 | Power supply module of data processing chip, control method of power supply module and vehicle |
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