CN109278675A - A kind of entire car controller self checking method of pure electric automobile - Google Patents
A kind of entire car controller self checking method of pure electric automobile Download PDFInfo
- Publication number
- CN109278675A CN109278675A CN201811038210.4A CN201811038210A CN109278675A CN 109278675 A CN109278675 A CN 109278675A CN 201811038210 A CN201811038210 A CN 201811038210A CN 109278675 A CN109278675 A CN 109278675A
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- self
- test
- entire car
- car controller
- driving module
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of entire car controller self checking methods of pure electric automobile, comprising the following steps: step 1, entire car controller detect that the signal of brake pedal inputs and starts self-test；Step 2, relay driving module self-test；Step 3, Analog input mModule self-test: Analog input mModule acquires the opening amount signal of accelerator pedal and brake pedal, and entire car controller detects Analog input mModule state parameter: step 4, the CAN bus module self-test for communicating with vehicle other equipment: step 5, fault mode.It is an advantage of the invention that can guarantee driver drives vehicle safety and can be avoided nobody maloperation on operator seat, the present invention can effectively check the operating condition of each module of vehicle before vehicle launch to achieve the purpose that ensure preceding safety detection of driving a vehicle.
Description
Technical field
The invention belongs to electric vehicle engineering field, more particularly to a kind of entire car controller of pure electric automobile is from procuratorial organ
Method.
Background technique
Currently, electric car uses battery as a source of power, the work of each components of power system of electric automobile is all
It is uniformly coordinated by entire car controller, entire car controller is the core of control system, assumes responsibility for data exchange, safety management and energy
The task of distribution, vehicle control unit of electric vehicle self-test are successfully the premises that vehicle normally starts and works.Electric automobile whole
Controller includes relay-operated controller, switch controller, CAN bus communication module, and the self-test of entire car controller is more than being directed to
Partial detection, to guarantee the clean boot and normally travel of vehicle.
The patent application of Publication No. CN108275000A discloses a kind of viscous dead automatic control side of electric vehicle contactor
Method.Embedded software, control strategy step packet are write on the peripheral circuit control panel of the entire car controller of the electric car
It includes: step 1: entire car controller low pressure power-on self-test；Step 2: judging that whether viscous contactor is dead；Step 3: if contactor is viscous
Extremely, contactor coil close command, output 24v power supply, contactor counter values+1 are given；Step 4: contactor coil closure refers to
Enable delay 30 seconds；Step 5: judging contactor counter values whether less than 5；Step 6: if contactor counter values are less than
5, give contactor coil open command, clear contactor flag bit；Step 7: repeating step 2~step 6 process；Step 8: if
Contactor counter values are more than or equal to 5, and contactor self- recoverage is completed；Step 9: entire car controller self-test is completed, into normal
Operation mode.
The patent application of Publication No. CN106828108A discloses a kind of based on the management of electric automobile high-voltage system electrification
Control method, method include entire car controller self-test, electric machine controller self-test, battery manager self-test, CAN communication state inspection
It looks into, entire car controller sends main contactor close command and feeds back main contactor state, use to battery manager, battery manager
The method of self-test and battery manager feedback contactor closed state.
In conclusion due to the difference of entire car controller, the appearance not about entire car controller self checking method at present,
And then there is self-test strategy confusion, the indefinite problem of indicating fault in existing self checking method, so, professional test can only be passed through
Software analyzing failure cause handles problem for vehicle staff after sale and adds unnecessary workload.
Summary of the invention
The purpose of the present invention is to provide the entire car controllers that one kind can overcome the pure electric automobile of above-mentioned technical problem
Self checking method, the method for the invention the following steps are included:
Step 1, entire car controller detect that the signal of brake pedal inputs and start self-test, and switching input module is certainly
Inspection；Switching input module received signal includes: automobile key ignition signal, gear signal, brake switch signal；
Step 1.1, when on-off state parameter it is normal, i.e. relay driving module interface pin low and high level signal detection
It is effectively normal for inputting, then enters step 2；
Step 1.2, when on-off state abnormal parameters, i.e., relay driving module interface pin low and high level signal inputs
Invalid is abnormal, fail self-test.
Step 2, relay driving module self-test: relay driving module includes water pump relay, FP Fuel Pump Relay, air pump
Relay and PTC relay；Entire car controller by detection relay driving module interface export low and high level validity come
Judged；
Step 2.1, when relay driving module state parameter it is normal, i.e. relay driving module interface pin low and high level
Signal detection output effectively be it is normal, then enter step 3；
Step 2.2, when relay driving module state parameter it is abnormal, i.e. relay driving module interface pin low and high level
Signal output is in vain to be abnormal, fail self-test.
Step 3, Analog input mModule self-test: Analog input mModule acquires accelerator pedal and the aperture of brake pedal is believed
Number, entire car controller detects Analog input mModule state parameter:
Step 3.1 judges Analog input mModule state, i.e., when analog signals acquisition area of low pressure working range is in 0-
Within 5V, then 4 are entered step；
Accelerator pedal is acquired using double-channel signal, with KA1=2*KA2 by acceleration pedal position signal and input voltage value
Linear relationship show i.e. are as follows:
Y=kx+b；
Wherein, y indicates that input voltage value, x indicate acceleration pedal position signal value, and k is the slope of curve, and b is curve intercept,
KA1, KA2 are the slope of accelerator pedal；If KA1=2*KA2 is determined as normal；
Step 3.2, when Analog input mModule state parameter it is abnormal, i.e., when analog signals acquisition area of low pressure works model
Enclosing is not then fail self-test within the scope of 0-5V.
Step 4, the CAN bus self-test communicated with electric machine controller (MCU), battery management system (BMS) and charger；
Step 4.1, CAN bus communication are normal, i.e., when entire car controller receives the report of electric machine controller, battery management system
Text feedback, then self-test passes through；
Step 4.2, CAN bus communication abnormality, i.e., when entire car controller can not receive electric machine controller, battery management system
Message feedback, then fail self-test.
Further, the entire car controller in the step 1, which starts self-test, is occurred in the case where brake pedal
's；
Further, in the step 2, the self-test of relay driving module, for judging the drive control line of relay
Communication it is whether normal.
Further, whether the self-test of the CAN bus of the step 4 is normal for detecting CAN bus communication.
The advantages of the method for the invention is that brake pedal entire car controller is needed just to start self-test, Neng Goubao after powering on
Card driver drives vehicle safety simultaneously can be avoided nobody maloperation on operator seat, can effectively examine before vehicle launch
The operating condition of each module of vehicle is looked into achieve the purpose that ensure preceding safety detection of driving a vehicle, is provided a kind of based on entire car controller
On-off signal, relay driving output, CAN bus communication check strategy with reach be effectively ensured vehicle it is normal start and
The purpose of safety traffic.
Detailed description of the invention:
Fig. 1 is the flow chart of the method for the invention.
Specific embodiment
Embodiments of the present invention are described in detail with reference to the accompanying drawing.As shown in Figure 1, the method for the invention packet
Include following steps:
Step 1, entire car controller detect that the signal of brake pedal inputs and start self-test, and switching input module is certainly
Inspection；Switching input module received signal includes: automobile key ignition signal, gear signal, brake switch signal；
Step 1.1, when on-off state parameter it is normal, i.e. relay driving module interface pin low and high level signal detection
It is effectively normal for inputting, then enters step 2；
Step 1.2, when on-off state abnormal parameters, i.e., relay driving module interface pin low and high level signal inputs
Invalid is abnormal, fail self-test.
Step 2, relay driving module self-test: relay driving module includes water pump relay, FP Fuel Pump Relay, air pump
Relay and PTC relay；Entire car controller by detection relay driving module interface export low and high level validity come
Judged；
Step 2.1, when relay driving module state parameter it is normal, i.e. relay driving module interface pin low and high level
Signal detection output effectively be it is normal, then enter step 3；
Step 2.2, when relay driving module state parameter it is abnormal, i.e. relay driving module interface pin low and high level
Signal output is in vain to be abnormal, fail self-test.
Step 3, Analog input mModule self-test: Analog input mModule acquires accelerator pedal and the aperture of brake pedal is believed
Number, entire car controller detects Analog input mModule state parameter:
Step 3.1 judges Analog input mModule state, i.e., when analog signals acquisition area of low pressure working range is in 0-
Within 5V, then 4 are entered step；
Accelerator pedal is acquired using double-channel signal, with KA1=2*KA2 by acceleration pedal position signal and input voltage value
Linear relationship show i.e. are as follows:
Y=kx+b；
Wherein, y indicates that input voltage value, x indicate acceleration pedal position signal value, and k is the slope of curve, and b is curve intercept,
KA1, KA2 are the slope of accelerator pedal；If KA1=2*KA2 is determined as normal；
Step 3.2, when Analog input mModule state parameter it is abnormal, i.e., when analog signals acquisition area of low pressure works model
Enclosing is not then fail self-test within the scope of 0-5V.
Step 4, the CAN bus self-test communicated with electric machine controller (MCU), battery management system (BMS) and charger；
Step 4.1, CAN bus communication are normal, i.e., when entire car controller receives the report of electric machine controller, battery management system
Text feedback, then self-test passes through；
Step 4.2, CAN bus communication abnormality, i.e., when entire car controller can not receive electric machine controller, battery management system
Message feedback, then fail self-test.
Further, the entire car controller in the step 1, which starts self-test, is occurred in the case where brake pedal
's.
Further, in the step 2, the self-test of relay driving module, for judging the drive control line of relay
Communication it is whether normal.
Further, whether the self-test of the CAN bus of the step 4 is normal for detecting CAN bus communication.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In range disclosed by the invention, the change or replacement that can be readily occurred in should all be contained those familiar with the art
Lid is within the scope of the invention as claimed.
Claims (4)
1. a kind of entire car controller self checking method of pure electric automobile, which is characterized in that following steps:
Step 1, entire car controller detect that the signal of brake pedal inputs and start self-test, and switching input module self-test is opened
It includes: automobile key ignition signal, gear signal, brake switch signal that input module received signal is measured in pass；
Step 1.1, when on-off state parameter it is normal, i.e., relay driving module interface pin low and high level signal detection input
Effectively be it is normal, then enter step 2；
Step 1.2, when on-off state abnormal parameters, i.e. relay driving module interface pin low and high level signal input is invalid
For exception, fail self-test；
Step 2, relay driving module self-test: relay driving module includes water pump relay, FP Fuel Pump Relay, air pump relay
Device and PTC relay；Entire car controller exports the validity of low and high level by detection relay driving module interface to carry out
Judgement；
Step 2.1, when relay driving module state parameter it is normal, i.e. relay driving module interface pin low and high level signal
Detection output effectively be it is normal, then enter step 3；
Step 2.2, when relay driving module state parameter it is abnormal, i.e. relay driving module interface pin low and high level signal
Output is in vain to be abnormal, fail self-test；
Step 3, Analog input mModule self-test: Analog input mModule acquires the opening amount signal of accelerator pedal and brake pedal,
Entire car controller detects Analog input mModule state parameter:
Step 3.1 judges Analog input mModule state, i.e., when analog signals acquisition area of low pressure working range 0-5V it
It is interior, then enter step 4；
Accelerator pedal is acquired using double-channel signal, with KA1=2*KA2 by the line of acceleration pedal position signal and input voltage value
Sexual intercourse shows i.e. are as follows:
Y=kx+b；
Wherein, y indicates that input voltage value, x indicate acceleration pedal position signal value, and k is the slope of curve, and b is curve intercept, KA1,
KA2 is the slope of accelerator pedal；If KA1=2*KA2 is determined as normal；
Step 3.2, when Analog input mModule state parameter it is abnormal, i.e., when analog signals acquisition area of low pressure working range not
It is then fail self-test within the scope of 0-5V；
Step 4, the CAN bus self-test communicated with electric machine controller, battery management system and charger；
Step 4.1, CAN bus communication are normal, i.e., when to receive electric machine controller, the message of battery management system anti-for entire car controller
Feedback, then self-test passes through；
Step 4.2, CAN bus communication abnormality, i.e., when entire car controller can not receive the report of electric machine controller, battery management system
Text is fed back, then fail self-test.
2. a kind of entire car controller self checking method of pure electric automobile according to claim 1, which is characterized in that the step
Entire car controller in rapid 1, which starts self-test, to be occurred in the case where brake pedal.
3. a kind of entire car controller self checking method of pure electric automobile according to claim 1, which is characterized in that the step
The self-test of relay driving module is whether the communication for judging the drive control line of relay is normal in rapid 2.
4. a kind of entire car controller self checking method of pure electric automobile according to claim 1, which is characterized in that the step
Whether rapid 4 CAN bus self-test is normal for detecting CAN bus communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038210.4A CN109278675A (en) | 2018-09-06 | 2018-09-06 | A kind of entire car controller self checking method of pure electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811038210.4A CN109278675A (en) | 2018-09-06 | 2018-09-06 | A kind of entire car controller self checking method of pure electric automobile |
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| CN109278675A true CN109278675A (en) | 2019-01-29 |
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ID=65184132
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| CN201811038210.4A Pending CN109278675A (en) | 2018-09-06 | 2018-09-06 | A kind of entire car controller self checking method of pure electric automobile |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058163A (en) * | 2019-03-19 | 2019-07-26 | 天长市龙亨电子有限公司 | A kind of testing and analysis system for controller for electric vehicle |
| CN110083130A (en) * | 2019-03-11 | 2019-08-02 | 汉腾汽车有限公司 | A kind of method of brake signal processing |
| CN110173420A (en) * | 2019-06-30 | 2019-08-27 | 潍柴动力股份有限公司 | The air pump fault detection method and relevant apparatus of electric vehicle |
| CN111562767A (en) * | 2020-05-27 | 2020-08-21 | 上海三一重机股份有限公司 | Mechanical equipment misoperation prevention system and control method |
| CN111845776A (en) * | 2020-07-30 | 2020-10-30 | 广州小鹏车联网科技有限公司 | Vehicle reminding method and vehicle |
| CN112572152A (en) * | 2020-12-16 | 2021-03-30 | 安徽华菱汽车有限公司 | Control method, system and device of electric automobile |
| CN113671928A (en) * | 2021-07-05 | 2021-11-19 | 浙江零跑科技股份有限公司 | Fault-tolerant type fault detection and protection method for controller of electric drive assembly |
| CN113765063A (en) * | 2021-09-10 | 2021-12-07 | 奇瑞商用车（安徽）有限公司 | Fault maintenance method for new energy automobile motor |
| CN114112447A (en) * | 2021-11-24 | 2022-03-01 | 中车大连机车车辆有限公司 | Method for testing functions of locomotive before departure |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110083130A (en) * | 2019-03-11 | 2019-08-02 | 汉腾汽车有限公司 | A kind of method of brake signal processing |
| CN110058163A (en) * | 2019-03-19 | 2019-07-26 | 天长市龙亨电子有限公司 | A kind of testing and analysis system for controller for electric vehicle |
| CN110173420A (en) * | 2019-06-30 | 2019-08-27 | 潍柴动力股份有限公司 | The air pump fault detection method and relevant apparatus of electric vehicle |
| CN110173420B (en) * | 2019-06-30 | 2020-11-20 | 潍柴动力股份有限公司 | Air pump fault detection method of electric vehicle and related device |
| CN111562767A (en) * | 2020-05-27 | 2020-08-21 | 上海三一重机股份有限公司 | Mechanical equipment misoperation prevention system and control method |
| CN111845776A (en) * | 2020-07-30 | 2020-10-30 | 广州小鹏车联网科技有限公司 | Vehicle reminding method and vehicle |
| CN111845776B (en) * | 2020-07-30 | 2021-12-07 | 广州橙行智动汽车科技有限公司 | Vehicle reminding method and vehicle |
| CN112572152A (en) * | 2020-12-16 | 2021-03-30 | 安徽华菱汽车有限公司 | Control method, system and device of electric automobile |
| CN113671928A (en) * | 2021-07-05 | 2021-11-19 | 浙江零跑科技股份有限公司 | Fault-tolerant type fault detection and protection method for controller of electric drive assembly |
| CN113765063A (en) * | 2021-09-10 | 2021-12-07 | 奇瑞商用车（安徽）有限公司 | Fault maintenance method for new energy automobile motor |
| CN114112447A (en) * | 2021-11-24 | 2022-03-01 | 中车大连机车车辆有限公司 | Method for testing functions of locomotive before departure |
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Application publication date: 20190129 |
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