CN104787038B - Possesses the diagnostic method of the hybrid vehicle diagnostic system of override control function - Google Patents
Possesses the diagnostic method of the hybrid vehicle diagnostic system of override control function Download PDFInfo
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- CN104787038B CN104787038B CN201510222547.0A CN201510222547A CN104787038B CN 104787038 B CN104787038 B CN 104787038B CN 201510222547 A CN201510222547 A CN 201510222547A CN 104787038 B CN104787038 B CN 104787038B
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- controller
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- car controller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Human Computer Interaction (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The invention discloses a kind of hybrid vehicle diagnostic system and its diagnostic method for possessing override control function, diagnostic system includes engine controller, clutch, traction electric machine and automatic gear-box, the clutch is connected between the output shaft of engine controller and the input shaft of traction electric machine, the output shaft of the traction electric machine is connected with the input shaft of automatic gear-box, the output shaft of the automatic gear-box is connected with the back axle of vehicle, also include Auto analyzer and entire car controller, the Auto analyzer passes through CAN and entire car controller, engine controller and electric machine controller both-way communication, the entire car controller is used to control the separation of clutch to combine, the shifting of automatic gear-box and the torque distribution of electric machine controller.Small volume of the present invention, it is in light weight, it directly can also be used by oneself common batteries power supply, avoided described in background example insufficient using vehicle 12V or 24V power supply.
Description
Technical field
The invention belongs to field of automobile electronic control, in particular to a kind of hybrid vehicle for possessing override control function
Diagnostic system and its diagnostic method.
Background technology
Traditional Auto analyzer such as Application No. CN201320784144, automobile described in CN201320695926 patent
Diagnostic equipment can realize read failure information, removes DTC, reading dynamic dataflow and display data stream and set automobile and examine
Disconnected command function, but more complicated automobile component diagnostic function can not be met.
For hybrid vehicle because its part is numerous, control logic is complicated, the functional verification of complexity, such as certain controller be present
The electrical control electric fan that radiates considers for energy-conservation, is designed as only entering controller outlet temperature when sensor measurement and is more than
Temperature 1 (T1, such as 50 DEG C) aft-fan is started working.If current environmental temperature is far below T1, related relay because
No signal is given to be failure to actuate, and it is caused by protective tube power-off that can not confirm or fan itself damages.Conventional repair method is generally such as
Under：
Method 1 is simulated using external temperature sensor causes controller to think that now temperature is more than T1, but this method
Wiring is cumbersome and wastes time and energy.
Method 2 uses Auto-Sensing Mode, that is, presses vehicle rocker switch input signal to entire car controller so that vehicle enters
Maintenance or diagnosis debugging mode, controller send the signal of different duty automatically, and driving fan sends different wind-force, should
Method can continue the 10-20 seconds, meet the simple maintenance of device, but this method is only limited to vehicle parking situation, can not
Cover the vehicle part maintenance under driving cycle.
Method 3 is that either routine diagnosis instrument changes controller flash or E using computer upper computer software2In ROM
Outlet temperature is 20 DEG C in threshold parameter, such as above-mentioned example, then fan opening temperature threshold value is arranged into 18 DEG C, fan work
It is i.e. effective to make signal, but this method has that part operation personnel are leaked correct Parameter reconstruction, is brought to product safety hidden
Suffer from, and be limited only to adjust simple logic and compare parameter, complicated input/output function parameter forces demarcation to need to adjust
Global Algorithm, very cumbersome and improper car inspection and repair librarian use, and notebook computer can not be grown because of battery durable reason
Time with car run, it is necessary in addition configure USB-CAN communication transition card, vehicle temporary repair, scheduling and planning in-convenience in use.
Similar fault diagnosis and debugging problem also have such as forward-reverse switching damage, battery cell voltage or temperature
Collection wire harness damage causes monomer voltage or temperature acquisition to be alarmed, and this all needs the make-up shielding failure to ensure that vehicle is normally transported in short term
OK, investigate such failure and exceed well over normal diagnostic instrument envelop of function.
The content of the invention
The invention aims to overcome above-mentioned deficiency to provide a kind of hybrid vehicle for possessing override control function
Diagnostic system and its diagnostic method.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of hybrid vehicle diagnostic system for possessing override control function, including engine controller, clutch, lead
Draw motor and automatic gear-box, the clutch be connected to engine controller output shaft and traction electric machine input shaft it
Between, the output shaft of the traction electric machine is connected with the input shaft of automatic gear-box, the output shaft and vehicle of the automatic gear-box
Back axle be connected, in addition to Auto analyzer and entire car controller, the Auto analyzer pass through CAN and full-vehicle control
Device, engine controller and electric machine controller both-way communication, the entire car controller be used for control the separation of clutch to combine,
The shifting of automatic gear-box and the torque distribution of electric machine controller.
The beneficial effects of the invention are as follows：Except possess the operating motor speed of monitoring hybrid vehicle, current of electric,
Outside the information such as high voltage connector state, accelerator pedal aperture, depositing at random in other controllers can also be changed by CAN communication
Reservoir (RAM) variable so that controller enters required logic or the corresponding logical variable of output, realizes override control work(
Energy；Auto analyzer and other controller CAN communications are disconnected, if not restarting CCU control power supply, RAM parameter constants
Change, continue executing with override control value；If restarting controller control power supply, RAM areas reinitialize, and do not influence normal procedure fortune
OK.Small volume of the present invention, it is in light weight, directly using vehicle 12V or 24V power supply can also use by oneself common batteries power supply, avoid the back of the body
It is insufficient described in scape example.
Brief description of the drawings
Fig. 1 is diagnostic system structural representation of the present invention.
Fig. 2 is diagnostic method flow chart of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and embodiment further illustrates the present invention.
Embodiment：A kind of hybrid vehicle diagnostic system for possessing override control function of the present invention, including engine 3,
Engine controller 4, clutch 5, traction electric machine 6, electric machine controller 7 and automatic gear-box 8, the clutch 5 are connected to hair
Between the output shaft of motivation 3 and the input shaft of traction electric machine 6, the output shaft of the traction electric machine 6 and the input of automatic gear-box 8
Axle is connected, and the output shaft of the automatic gear-box 8 is connected with the back axle 9 of vehicle, traction electric machine 6 and electric machine controller 7 phase
Even, in addition to Auto analyzer 1 and entire car controller 2, the Auto analyzer 1 pass through CAN and entire car controller 2, hair
Motivation controller 4 and the both-way communication of electric machine controller 7, the entire car controller 2 respectively with engine controller 4, clutch
5th, electric machine controller 7 is connected with automatic gear-box 8, the entire car controller 2 be used for control the separation of clutch 5 to combine, automatically
The shifting of gearbox 8 and the torque distribution of engine controller 4 and electric machine controller 7.
The present invention can also include electrokinetic cell 10 and equal for being responsible for the information gathering of electrokinetic cell 10 and electrokinetic cell 10
The battery management system 11 of weighing apparatus, the electrokinetic cell 10 are connected with electric machine controller 7, and the electrokinetic cell 10 is responsible for giving motor control
Device 7 processed is powered and reclaims its skidding and recovers energy, and the Auto analyzer 1 passes through CAN and battery management system 11
Both-way communication realizes override control and information sharing.
Wherein Auto analyzer 1 can select the EC9374AZZ model vapour of Chang Tong Science and Technology Ltd.s of Beijing Unionsun production
Car diagnostic equipment；Entire car controller 2 can select the VC21-13R48A model vehicle controls of east wind Xiangyang station wagon Co., Ltd production
Device processed；Battery management system 11 can select the battery management of the HS-100 models of Beijing Hai Bosi wounds Science and Technology Ltd. production
System；Electric machine controller 7 can select the electricity of the DKQ101 models of Hunan Nanche Shidai Electric Vehicle Co., Ltd's production
Machine controller, engine controller 4 can select the Xtron-C32B models of Shanghai Exon Power System Co., Ltd.'s production
Engine controller.
Auto analyzer 1 and CCU form the system for possessing override control function.Wherein Auto analyzer 1 is by liquid
The composition such as crystalline substance screen, button and built-in control panel, both can similar other conventional vehicle diagnostic equipments monitoring electric automobile it is operating
Motor speed, current of electric, engine coolant temperature, driver's accelerator pedal aperture, battery SOC and high voltage connector state etc.
Information, the RAM variables in other controllers can be also changed by CAN communication so that controller enters required logic or defeated
Go out corresponding logical variable, realize override control function.
Auto analyzer 1 in the present invention can external automobile the power supply of 24V or 12V power supplys, can also use the 5* carried
1.2V battery powereds, it is in light weight due to small volume, avoid the inconvenience brought using cells in notebook computer continuation of the journey deficiency.Should
Equipment can be set software authority and be used for vehicle control device attendant, also be available for user's use.
Illustrate so that Auto analyzer 1 and entire car controller 2 establish CAN communication processing driver's accelerator pedal failure as an example.It is whole
Collection vehicle driver accelerator pedal aperture obtains driver driving and is intended to and distributes engine controller during 2 normal operation of vehicle controller
3 and the target torque of electric machine controller 7, when accelerator pedal is because of power failure or pedal wiring itself is bad causes driver to step on acceleration
Pedal can use the present invention when invalid.
Comprising debugging flag bit i.e. " flag_debug " structure global variable in entire car controller 2, it is defaulted as working as flag_
When debug families value is 0, input variable obtains using self-sensor device measured value or from other controllers by CAN
Actual physical value.Such as driver floors accelerator pedal, and corresponding flag_debug structure variables flag_
Debug.accelerator=0, entire car controller think that current accelerator pedal aperture is 100%.When Auto analyzer 1 passes through
CAN communicates with entire car controller 2 and sets flag_debug family value flag_debug.accelerator=1, and gives
A fixed virtual accelerator pedal aperture " override value " is override.accelerator=5%, even if now driver will add
Speed pedal is floored, but the internal logic of entire car controller 2 still thinks that now accelerator pedal aperture is 5%, if because of special original
Because the CAN communications between Auto analyzer 1 and entire car controller 2 are disconnected suddenly but still keep power supply not restart, vehicle control
Device 2 processed still uses override.accelerator values, that is, still believes that current driver's accelerator pedal aperture is 5%, if this
When system power off or restart entire car controller 2 suddenly, then entire car controller 2 reset RAM parameter initializations with actual acquisition value
It is defined, when Auto analyzer 1 is communicated by CAN and entire car controller 2 and sets flag_override.accelerator
=0, the internal logic of entire car controller 2 recovers to be defined by the numerical value of itself collection.Similarly, engine controller 4 and motor control
The input and output logical AND that device 7 includes are above-mentioned similar.
A kind of diagnostic method for the hybrid vehicle diagnostic system for possessing override control function comprises the following steps：
Step 1：Auto analyzer 1 and entire car controller 2 complete own hardware initialization and CAN hardware initializations, and
Auto analyzer 1 and the internal processes of entire car controller 2 storage flash address initializations, the initialization of data space address ram；
Step 2：The CAN communication connection established between Auto analyzer 1 and entire car controller 2, is recalled in entire car controller 2
Address of variable, types of variables and the physical transformations mode file identified suitable for Auto analyzer 1 is A2L files, and is confirmed
Password is correct；
Step 3：Auto analyzer 1 reads the conventional parameter of entire car controller 2 according to A2L address files, such as vehicle gear
Switch state signal, it is ensured that Auto analyzer 1 and entire car controller 2 are working properly；
Step 4：User operates Auto analyzer 1 and enters override control menu, and sending read/write memory to entire car controller 2 refers to
Order；
Step 5：Entire car controller 2 receives the instruction that Auto analyzer 1 is sent, it would be desirable to does the storage of override control
Flash region duplications are to ram region；
It is flash including setting the first pointer variable to point to source address, the second pointer variable points to destination address, pointer the
One pointer variable and the second pointer variable reduce with address length gauge number and are synchronously incremented by.
Step 6：Auto analyzer 1 carries out override control, including recalls debugging sign structure body variable flag_
Debug.accelerator, override arranges value override.accelerator, driver's accelerator pedal original value raw_
Accelerator, entire car controller are used for the accelerator pedal value accelerator of control strategy.
If flag_debug.accelerator=0, accelerator=raw_accelerator are set
If flag_debug.accelerator=1, accelerator=override. accelerator are set
Step 7：The CAN communication connection between Auto analyzer 1 and entire car controller 2 is disconnected, override control function continues
Effectively, only override control function exits after resetting entire car controller 2 or restarting entire car controller 2.
The diagnostic system for possessing the function can be applied to such as intake air temperature, atmospheric pressure, electric machine controller sample rate current etc.
Input quantity logic judgment, actual physical measurement value sensor is substituted in necessary occasion using override value, and complex patrolled
Collect output occasion such as：High pressure pre-charge contactor does not close, and can force to export precharge command, it is due to relay to be easy to lookup
Circuit is damaged caused by either contactor itself damage or pre-charge resistance damage, can also force to disconnect pre-charge contactor,
It need not be acted using cumbersome wiring.
Controller leaving water temperature is 20 DEG C in such as above-mentioned background example, passes through the override control controller of Auto analyzer 1 and detects
Temperature is 52 DEG C, then controller thinks that Current Temperatures are 52 DEG C, and the fan more than 50 DEG C opens threshold value, fan running.Disconnect vapour
The CAN communication of car diagnostic equipment 1 and entire car controller 2 is simultaneously restarted RAM parameters in power-supply controller of electric and reinitialized, only when true
Electronic fan can just perform corresponding operating when temperature is more than 50 DEG C.
It may be noted that override function of the present invention needs software design patterns associated rights, override control by mistake is prevented, is being related to
The fields such as the related motor speed of electric machine controller important safety control, it is impossible to which, using override control, partial parameters also need to release
Protection parameters can use.
Claims (2)
- A kind of 1. diagnostic method for being used to possess the hybrid vehicle diagnostic system of override control function, it is characterised in that：The hybrid vehicle diagnostic system for possessing override control function include engine, engine controller, clutch, Traction electric machine, electric machine controller and automatic gear-box, the clutch be connected to engine output shaft and traction electric machine it is defeated Between entering axle, the output shaft of the traction electric machine is connected with the input shaft of automatic gear-box, the output shaft of the automatic gear-box It is connected with the back axle of vehicle, the traction electric machine is connected with electric machine controller, in addition to Auto analyzer and entire car controller, institute Auto analyzer is stated by CAN and entire car controller, engine controller and electric machine controller both-way communication, it is described whole Vehicle controller is connected with engine controller, clutch, electric machine controller and automatic gear-box respectively；Also include electrokinetic cell and For controlling the battery management system of power battery information acquisition and dynamic balnce, electrokinetic cell and the electric machine controller phase Even, the Auto analyzer passes through CAN and battery management system both-way communication；The diagnostic method comprises the concrete steps that：Step 1：Auto analyzer (1) and entire car controller (2) complete own hardware initialization and CAN hardware initializations, and Auto analyzer (1) and entire car controller (2) internal processes storage flash address initializations, data space address ram are initial Change；Step 2：The CAN communication connection established between Auto analyzer (1) and entire car controller (2), recalls entire car controller (2) In be applied to Auto analyzer (1) identification address of variable, types of variables and physical transformations mode file be A2L addresses text Part, and confirm that password is correct；Step 3：Auto analyzer (1) reads the conventional parameter of entire car controller (2) according to A2L address files, it is ensured that automobile is examined Disconnected instrument (1) and entire car controller (2) are working properly；Step 4：User operates Auto analyzer (1) and enters override control menu, and sending read/write memory to entire car controller (2) refers to Order；Step 5：Entire car controller (2) receives the instruction that Auto analyzer (1) is sent, it would be desirable to does the storage of override control Flash region duplications are to ram region；Step 6：Auto analyzer (1) carries out override control；Step 7：The CAN communication connection between Auto analyzer (1) and entire car controller (2) is disconnected, override control function continues Effectively, only override control function exits after resetting entire car controller (2) or restarting entire car controller (2).
- 2. the diagnosis side according to claim 1 for being used to possess the hybrid vehicle diagnostic system of override control function Method, it is characterised in that the step 6 includes：Recall debugging sign structure body variable flag_debug.accelerator, override Arranges value override.accelerator, driver accelerator pedal original value raw_accelerator, entire car controller (2) are used In the accelerator pedal value accelerator of control strategy；If setting flag_debug.accelerator=0,Then accelerator=raw_accelerator；If setting flag_debug.accelerator=1,Then accelerator=override.accelerator.
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| CN106526346A (en) * | 2015-09-11 | 2017-03-22 | 联合汽车电子有限公司 | Off-line testing system and method for electric vehicle |
| CN105242528B (en) * | 2015-10-28 | 2017-11-14 | 广东电网有限责任公司电力科学研究院 | Equipment output mutational equilibrium control method and system |
| US10913448B2 (en) | 2018-10-19 | 2021-02-09 | Ford Global Technologies, Llc | Methods and systems for operating a vehicle driveline |
| CN113043970B (en) * | 2021-03-30 | 2023-03-14 | 重庆长安汽车股份有限公司 | Load management system for whole vehicle |
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| CN1555991A (en) * | 2003-12-31 | 2004-12-22 | 上汽集团奇瑞汽车有限公司 | Mixed power car control system |
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