CN101364111B - Fault detecting and processing method for hybrid vehicle - Google Patents
Fault detecting and processing method for hybrid vehicle Download PDFInfo
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- CN101364111B CN101364111B CN2007100755533A CN200710075553A CN101364111B CN 101364111 B CN101364111 B CN 101364111B CN 2007100755533 A CN2007100755533 A CN 2007100755533A CN 200710075553 A CN200710075553 A CN 200710075553A CN 101364111 B CN101364111 B CN 101364111B
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Abstract
The invention discloses a fault detecting and handling method for a hybrid vehicle and a fault detecting and handling system using the method. The technical proposal is as follows: the method adopts the intelligent control modules of the hybrid vehicle, wherein the intelligent control modules include a hybrid power control unit, an electrical control unit, a battery management system and an engine management system; the fault handling system of the hybrid power control unit is adopted as the fault handling decision center, and the fault handling units of the electrical control unit, the battery management system and the engine management system are adopted as the sub-systems; the decision center and the subsystems cooperate to detect and handle the fault. The system and the method are applicable in the control system of the vehicle (particularly hybrid vehicle) to enhance the fault detection and handling capability.
Description
Technical field
The present invention relates to the method for fault detect and processing, relate to especially that the fault at automobile detects in the hybrid vehicle, determine nature of trouble and position and the method for fault being carried out respective handling.
Background technology
Hybrid vehicle had both improved the cornering ability of vehicle as the clean energy-saving type automobile of a new generation, had given full play to the advantage of internal-combustion engines vehicle and electric automobile, was current actual low emission and the low oil consumption automobile of developing meaning of tool.But hybrid vehicle control more complicated, comparing with common car needs to consider special Security Control Problem, mainly contain following some: 1. starting engine when power system engages; 2. engine hang-up or stall; 3. engine accidental activation; 4. engine can't restart; 5. unexpected driving torque increases; 6. unexpected driving torque reduces; 7. unexpected braking torque reduces.Therefore the gordian technique of the exploitation of hybrid power system is except integrated vehicle control tactics, engine control, motor and battery control, and crucial technology also is the monitoring of each system failure and makes measures areput and protect each system.In the prior art also not to the system of the monitoring and the processing of each system failure of automobile, have only some local fault in the automobile is detected and reports to the police, finish the system of fault handling by manual intervention, the patent No. is that the Chinese utility model patent of ZL02228885.6 has just been announced a kind of like this automobile integrated alarm controller, the automatic testing circuit of filament, safety belt reminding circuit, car door patent and the light patent warning circuit that utilize an integrated alarm device controller Control of Automobile taillight to detect automatically.Use this patent can improve the performance and the practicality of integrated alarm, reduce the accident that therefore automobile causes greatly, but this patent can not solve to each system failure detection of automobile and processing.
Summary of the invention
The technical problem to be solved in the present invention is, in order to remedy the deficiency of existing automobile integrated alarm controller, and provide a kind of detect automobile particularly each system failure of hybrid vehicle method and a kind of system that realizes this method is proposed.
The present invention solves the problems of the technologies described above to adopt following technical scheme: the method for a kind of hybrid vehicle fault detect and processing, it is characterized in that: this method is utilized each intelligent control module of hybrid vehicle: the hybrid power control module, motor control unit, battery management system, engine management system, fault processing system with the hybrid power control module is that fault handling decision center and this unit pass through the control cooling pump, fan is directly to hybrid powder motor, inverter and DC-DC carry out heat management, with motor control unit, battery management system, fault processing unit in the engine management system is a subsystem, follows these steps to carry out vehicle failure detection and processing:
A. the sensor that has of each subsystem utilization itself is monitored each location mode in the native system, and judge whether it is in normal operating conditions, if be in normal operating conditions, then continue monitoring, have the cell operation state under improper situation, promptly to enter the fault handling pattern that step begins from b if find;
B. subsystem is differentiated the situation of fault, if the fault that native system can recover voluntarily, then start fault recovery system and recover out of order unit, simultaneously failure condition is reported the hybrid power control module, if the fault that native system can not recover voluntarily then reports the hybrid power control module with the fault content;
C. the Trouble Report of hybrid power control module receiving subsystem is analyzed this Trouble Report, and is handled as the case may be.
Further, the hybrid power control module is analyzed Trouble Report among the step c, and handles as the case may be and may further comprise the steps:
C1. if fault is the described system oneself recovery that reports fault, then charge to the system journal of hybrid power control module;
C2. if fault can be recovered by other subsystem, then the hybrid power control module is coordinated the resource recovery fault of other subsystem or utilization control itself, and charges to the system journal of hybrid power control module;
C3. if fault for can not recovering voluntarily, driver then, and charge to the system journal of hybrid power control module.
Further, subsystem reports that on the hybrid power control module Trouble Report realizes that by sending packet the data in this packet comprise the fault mark code at least.Described fault mark code comprises 6 bit digital, and first is this subsystem code, second fault cause code, and the 3rd to the 5th is failure code, the 6th is the grade code of described fault.
In addition, the present invention has also designed a kind of system that realizes this method, its technical scheme is: a kind of hybrid vehicle fault detect and disposal system, it is characterized in that, comprise the hybrid power control module, motor control unit, battery management system, the fault detect of engine management system and processing subelement, motor control unit, battery management system, the fault detect of engine management system and processing subelement communicate by CAN bus and hybrid power control module, and the hybrid power control module is by the control cooling pump, fan is directly to hybrid powder motor, inverter and DC-DC carry out heat management.
Good effect of the present invention is particularly to increase the method for fault detect and processing capacity in the control system of hybrid vehicle and utilize the system of this method at existing automobile, further can classify to this method, and be documented in the storage system of system for handle and analyze afterwards to detected fault.
Further specify the present invention below in conjunction with embodiment and accompanying drawing.
Description of drawings
Fig. 1 is hybrid vehicle fault detect and disposal system block diagram.
Fig. 2 indicates code for fault.
Fig. 3 is monitoring of battery management system mesohigh battery failures and processing flow chart.
Fig. 4 is monitoring of hybrid power control module mesohigh battery failures and processing flow chart.
Among the figure, 1. hybrid power control module, 11. cooling systems, 12.DC/DC, 2. motor control unit, 21. hybrid powder motors, 3. battery management system, 31. high-tension batteries, 4. engine management system, 41. engine systems.
Embodiment
As shown in Figure 1, a kind of hybrid vehicle fault detect and disposal system, comprise hybrid power control module 1, motor control unit 2, battery management system 3, the fault detect of engine management system 4 and processing subelement, hybrid power control module 1, motor control unit 2, battery management system 3, the English abbreviation of engine management system 4 is respectively: HCU, MCU, BMS, EMS, to call HCU1 in the following text, MCU2, BMS3, EMS4, MCU2, BMS3, the fault detect of EMS4 and processing subelement communicate by CAN bus and HCU1, and HCU1 is by the control cooling pump, cooling systems such as fan 11 are directly to hybrid powder motor 21 (claiming ISG21 again), inverter and DC/DC12 carry out heat management.MCU2 controls and detects each unit of ISG21, when BMS3 controls high-tension battery 31, also utilize some sensors etc. that the health status of battery is detected, whether EMS4 also wants each partially-working state of detection of engine system normal when engine system 41 is controlled, MCU2, BMS3, EMS4 and HCU1 are by the CAN bus exchanging data of automobile.
To fault detect be treated to example and be illustrated, EMS is similar with processing mode to fault detect to HCU with MCU with BMS and HCU for hybrid vehicle fault detect shown in Figure 1 and disposal system groundwork flow process.
BMS and HCU are to fault detect and handle the work that follows these steps to:
The sensor that the BMS utilization has itself is monitored each location mode in the high-tension battery, mainly be electric current, voltage, temperature, battery capacity of high-tension battery etc., judge whether it is in normal operating conditions, if be in normal operating conditions, then continue monitoring, have the cell operation state under improper situation, promptly to enter the fault handling pattern if find;
BMS enters the situation of the fault processing unit fault of fault handling pattern, BMS and differentiates, if the fault that native system can recover voluntarily, then start fault recovery system and recover out of order unit, simultaneously failure condition is reported the hybrid power control module, if the fault that native system can not recover voluntarily then reports the hybrid power control module with the fault content.Finish fault detect and processing in BMS inside by following procedure.
For BMS, the high-tension battery mode of operation comprises: down state, dormant state, operation but idle condition, connect off-state, force disconnection, pre-charge state, alert status and connection status.Work relationship between the various mode of operations is seen as Fig. 3.
The high-tension battery mode of operation enters down state after the system reset, and adequate preparation just can enter operation but idle condition through system at down state.
In operation but during idle condition, insertions automobile key is TRUE, forbids being FALSE when dormancy, just enters dormant state, in dormant state, when the insertion automobile key is that TRUE then enters into down state; When dormancy is forbidden for TURE, enter the connection off-state.
When connecting off-state, when being FALSE, automobile key returns operation again but idle condition when inserting, when being TURE with the permission charging instruction, link order then enters into pre-charge state.
When pre-charge state, receive that precharge finishes order and then enter connection status; When inserting automobile key is FALSE or precharge failure, then enters alert status.
In alert status, then enter the pressure off-state when having catastrophic failure, if connection failure then enters into the connection off-state, if inserting automobile key, link order, surpassing the pre-warning time person is TURE, and precharge is finished, and the system failure is FALSE, then enters connection status
In connection status, system's operate as normal is when to insert automobile key be FALSE and return alert status when the system failure occurring; When link order enters the connection off-state during for FALSE.
Forcing off-state, when link order enters the connection off-state during for FALSE; If CAN information dropout is TURE, enter operation but idle condition when inserting automobile key and be FALSE and pre-charge state for INACTIVE.
HCU receives the Trouble Report of BMS, this Trouble Report is analyzed, and handled in the following manner as the case may be.
If fault is the described system oneself recovery that reports fault, then charge to the system journal of hybrid power control module.
If fault can be recovered by other subsystem, then the hybrid power control module is coordinated the resource recovery fault of other subsystem or utilization control itself, and charges to the system journal of hybrid power control module.
If fault be for can not recovering voluntarily, driver then, and charge to the system journal of hybrid power control module.
The HCU high-tension battery is had six fault handling patterns, comprise normal mode, owe charge mode, the pattern of overcharging, fault mode, failure mode and connect Disconnected mode as shown in Figure 4.
Normal mode: be the operational mode when any fault not taking place;
The pattern of overcharging: this pattern is a HCU software fault pattern, and it is high to allowing the pattern of BMS cut-out battery to refer to that high-tension battery SOC does not also have;
Owe charge mode: with the pattern similarity that overcharges, it is low to allowing BMS cut off the pattern of battery to refer to that high-tension battery SOC does not also have;
Fault mode: non-CAN communication failure pattern, and BMS does not have the cutoff high battery;
Failure mode refers to that losing CAN between HCU and the BMS communicates by letter, and perhaps the BMS software fault enters the non-productive work pattern;
Connect Disconnected mode: refer to because fault causes BMS that battery is disconnected from driving-chain.
BMS communicates by letter by CAN with HCU, and by numbering shown in Figure 2, first is expression BMS system to BMS with the fault content, here be decided to be 1, for example, failure cause may be owing to long-play here, and weather is relatively more hot, to making battery temperature too high, be decided to be 5, failure code is 233, is the fault of a restorability, the order of severity is 3, and then malfunction coding is 152334.After HCU receives this coding, lower the temperature to battery, just can solve by the control refrigeration system.
Claims (3)
1. hybrid vehicle fault detect and disposal route, this method is utilized each intelligent control module of hybrid vehicle: the hybrid power control module, motor control unit, battery management system, engine management system, fault processing system with the hybrid power control module is that fault handling decision center and this unit pass through the control cooling pump, fan is directly to hybrid powder motor, inverter and DC-DC carry out heat management, with motor control unit, battery management system, fault processing unit in the engine management system is a subsystem, follows these steps to carry out vehicle failure detection and processing:
A. the sensor that has of each subsystem utilization itself is monitored each location mode in the native system, and judge whether it is in normal operating conditions, if be in normal operating conditions, then continue monitoring, have the cell operation state under improper situation, promptly to enter the fault handling pattern that step begins from b if find;
B. subsystem is differentiated the situation of fault, if the fault that native system can recover voluntarily, then start fault recovery system and recover out of order unit, simultaneously failure condition is reported the hybrid power control module, if the fault that native system can not recover voluntarily then reports the hybrid power control module with the fault content;
C. the Trouble Report of hybrid power control module receiving subsystem is analyzed this Trouble Report, and handles according to following concrete condition:
C1. if fault is the described system oneself recovery that reports fault, then charge to the system journal of hybrid power control module;
C2. if fault can be recovered by other subsystem, then the hybrid power control module is coordinated the resource recovery fault of other subsystem or utilization control itself, and charges to the system journal of hybrid power control module;
C3. if fault for can not recovering voluntarily, driver then, and charge to the system journal of hybrid power control module.
2. hybrid vehicle fault detect according to claim 1 and disposal route, it is characterized in that, described subsystem communicates by the CAN bus to the hybrid power control module, subsystem reports Trouble Report to realize that by sending packet the data in this packet comprise the fault mark code at least to the hybrid power control module.
3. hybrid vehicle fault detect according to claim 2 and disposal route, it is characterized in that, described fault mark code comprises 6 bit digital, first is this subsystem code, second fault cause code, the 3rd to the 5th is failure code, and the 6th is the grade code of described fault.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100755533A CN101364111B (en) | 2007-08-07 | 2007-08-07 | Fault detecting and processing method for hybrid vehicle |
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| CN2007100755533A CN101364111B (en) | 2007-08-07 | 2007-08-07 | Fault detecting and processing method for hybrid vehicle |
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| CN101364111B true CN101364111B (en) | 2011-09-21 |
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| CN104176060B (en) * | 2014-07-25 | 2016-08-24 | 湖南大学 | A kind of electric automobile whole failure sorted processing method |
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| CN106394562B (en) * | 2015-07-20 | 2019-03-01 | 上汽通用汽车有限公司 | Mixed power automobile control system and entire car controller |
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| CN107323433B (en) * | 2017-06-28 | 2020-06-09 | 奇瑞新能源汽车股份有限公司 | Fault detection and maintenance method and device for vehicle and storage medium |
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