CN201670225U - Control module, brake vacuum boosting device and electric automobile - Google Patents
Control module, brake vacuum boosting device and electric automobile Download PDFInfo
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- CN201670225U CN201670225U CN2010201989668U CN201020198966U CN201670225U CN 201670225 U CN201670225 U CN 201670225U CN 2010201989668 U CN2010201989668 U CN 2010201989668U CN 201020198966 U CN201020198966 U CN 201020198966U CN 201670225 U CN201670225 U CN 201670225U
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Abstract
The utility model discloses a control module of a brake vacuum boosting device of an electric automobile. The control module consists of a vacuum pressure sensor fault diagnosis unit and a vacuum pressure data acquisition unit, the vacuum pressure sensor fault diagnosis unit is used for judging whether a vacuum pressure sensor is in fault or not, if the vacuum pressure sensor is in fault, the control module controls a vacuum pump to work and make a fault alarm. The utility model further discloses a brake vacuum boosting device of an electric automobile, which comprises the control module. The utility model discloses the electric automobile comprising the brake vacuum boosting device. The fault diagnosis unit is used for judging whether the brake vacuum boosting device is in fault or not, when the brake vacuum boosting device is in fault, the control module controls the vacuum pump to work and make a fault alarm, the brake vacuum boosting device has higher reliability, and safety of the brake system is improved.
Description
Technical field
The utility model relates to a kind of control module and comprises the braking vacuum booster device and the electronlmobil of this control module.
Background technology
Under the promotion of the support of the policy of country, finance and technology, electronlmobil (particularly pure electric automobile) has obtained development rapidly.Most cars all adopt vacuum boosting braking system, the vacuum source of traditional combustion engine brake system of car vacuum booster unit all derives from engine intake manifold, and pure electric sedan or have the electronlmobil of pure electronic operating mode owing to there is not the vacuum propulsion source of engine intake manifold, depend merely on the demand that braking force that manpower produces can't satisfy car brakeing, therefore must have the electric vacuum booster device and assist manpower to carry out car brakeing.
At present, a lot of electronlmobils all are to adopt electric vacuum pump to work without cessation to vacuumize, though can realize brake boost like this, energy consumption is too big, increases the noise of system, causes the premature loss of vacuum pump.Some systems' employing vacuum pressure switchs or vacuum pressure sensor are controlled the unlatching of vacuum pump or are stopped in addition, only simply control according to the break-make of vacuum pressure switch or according to the output voltage values of vacuum pressure sensor, do not have diagnosis function, make brake system have potential safety hazard.
The utility model content
The utility model provides a kind of braking vacuum booster device and electronlmobil that can make the high control module of electronlmobil braking vacuum booster device stable work in work, reliability and comprise this control module for solving the technical matters that exists in the known technology.
First technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: a kind of control module of electronlmobil braking vacuum booster device, described control module comprises vacuum pressure sensor failure diagnosis unit and vacuum pressure data acquisition unit, described vacuum pressure data acquisition unit calculates the vacuum pressure value according to the vacuum pressure sensor output voltage values that collects, described vacuum pressure sensor failure diagnosis unit is used to judge whether vacuum pressure sensor has fault, if, control vacuum pump work and fault alarm; If not, controlling described vacuum pump according to the vacuum pressure value opens and stops.
Described control module also comprises the first system fault diagnosis unit, and the described first system fault diagnosis unit comprises that first judgment sub-unit, second judgment sub-unit and first data obtain subelement; Described first judgment sub-unit is used for when described vacuum pressure sensor failure diagnosis unit is judged described vacuum pressure sensor trouble free, judge whether described vacuum pump works, when described vacuum pump was worked, described first data were obtained subelement and are obtained the vacuum pressure rate of descent; Described second judgment sub-unit judges that whether described first data obtain vacuum pressure rate of descent that subelement gets access to greater than second setting value under the brakeless situation, if not, control described vacuum pump work and fault alarm.
Described control module also comprises the second system fault diagnosis unit, and the described second system fault diagnosis unit comprises that second data obtain subelement and the 3rd judgment sub-unit; When described second data are obtained result that subelement judges in described first judgment sub-unit for described vacuum air pump inoperative, obtain the vacuum pressure escalating rate; Described the 3rd judgment sub-unit judges that whether described second data obtain vacuum pressure escalating rate that subelement gets access to greater than the 4th setting value under the brakeless situation, if, control described vacuum pump work and fault alarm, if not, Control Circulation finishes.
Described vacuum pressure sensor failure diagnosis unit is carried out trouble diagnosing according to the magnitude of voltage of vacuum pressure sensor output, if when magnitude of voltage surpasses the first preset range value, then judges the vacuum pressure sensor fault.
After described vacuum pressure sensor failure diagnosis unit detected speed-slackening signal, the vacuum pressure value before and after relatively braking was if the variation of the vacuum pressure value before and after the braking is then judged the vacuum pressure sensor fault less than second preset value.
Second technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: a kind of electronlmobil braking vacuum booster device, described brake work-saving device comprises above-mentioned control module.
The 3rd technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: a kind of electronlmobil, described electronlmobil comprises above-mentioned braking vacuum booster device.
Advantage and the good effect that the utlity model has are: control module is by being provided with failure diagnosis unit, judge whether braking vacuum booster device has fault, when fault, control module control vacuum pump work is also carried out alarm, make braking vacuum booster device have higher reliability, improved the safety of brake system, and control the unlatching of vacuum pump and stop according to the vacuum pressure value that collects, make in its pressure in guaranteeing vacuum reservoir, reduce the work-hours of electric vacuum pump, reduced the energy resource consumption of car load widely.
Description of drawings
Fig. 1 is the structured flowchart of the utility model electronlmobil braking vacuum booster device control module;
Fig. 2 is the control flow chart of the utility model electronlmobil braking vacuum booster device;
Fig. 3 is the block diagram of the utility model electronlmobil braking vacuum booster device.
Among the figure: 1, vacuum pump, 2, check valve, 3, vacuum reservoir, 4, vacuum pressure sensor, 5, vacuum booster, 6, brake system, 7, control module, 8, brake switch or pedal jaw opening sensor, 9, brake pedal, 71, the vacuum pressure sensor failure diagnosis unit, 72, the vacuum pressure data acquisition unit, 73, first judging unit, 74, the first system fault diagnosis unit, 741, first judgment sub-unit, 742, second judgment sub-unit, 743, first data are obtained subelement, 75, second judging unit, 76, the second system fault diagnosis unit, 761, second data are obtained subelement, and 762, the 3rd judgment sub-unit.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Embodiment 1:
See also Fig. 1～Fig. 3, a kind of control module 7 of electronlmobil braking vacuum booster device, described control module 7 comprises vacuum pressure sensor failure diagnosis unit 71 and vacuum pressure data acquisition unit 72, described vacuum pressure data acquisition unit 72 calculates the vacuum pressure value according to vacuum pressure sensor 4 output voltage values that collect, described vacuum pressure sensor failure diagnosis unit 71 is used to judge whether vacuum pressure sensor 4 has fault, if, control vacuum pump 1 work and fault alarm; If not, described control module 7 also comprises first judging unit 73, described first judgment sub-unit 73 is used for when described vacuum pressure sensor failure diagnosis unit 71 is judged vacuum pressure sensor 4 troubles free, judge whether the vacuum pressure value exceeds first setting value, if, 1 work of control vacuum pump, if not, described control module 7 also comprises the first system fault diagnosis unit 74, and the described first system fault diagnosis unit 74 comprises that first judgment sub-unit 741, second judgment sub-unit 742 and first data obtain subelement 743; Described first judgment sub-unit 741 judges whether vacuum pump 1 works, and when vacuum pump 1 work, described first data are obtained subelement 743 and obtained the vacuum pressure rate of descent; Described second judgment sub-unit 742 is under the brakeless situation, judge that whether described first data obtain vacuum pressure rate of descent that subelement 743 gets access to greater than second setting value, if not, control vacuum pump 1 work and fault alarm, if, this control module also comprises second judging unit 75, when described second judgment sub-unit 742 judges that described first data are obtained vacuum pressure rate of descent that subelement 743 gets access to greater than second setting value, described second judging unit 75 judges that whether vacuum pressure value that described vacuum pressure Value Data collecting unit 72 collects is less than the 3rd setting value, if, close vacuum pump 1, if not, Control Circulation finishes.
When the result who judges in described first judgment sub-unit 741 did not work for vacuum pump 1, this control module 7 comprised that also 76, the second system fault diagnosis unit 76, the second system fault diagnosis unit comprise that second data obtain subelement 761 and the 3rd judgment sub-unit 762; Described second data are obtained subelement 761 when the result of described first judgment sub-unit 741 judgements does not work for vacuum pump 1, obtain the vacuum pressure escalating rate; Described the 3rd judgment sub-unit 762 is under the brakeless situation, judge that whether described second data obtain vacuum pressure escalating rate that subelement 761 gets access to greater than the 4th setting value, if, control vacuum pump 1 work and fault alarm, if not, Control Circulation finishes.
Absolute value/time that above-mentioned vacuum pressure escalating rate=vacuum pressure value changes.Absolute value/time that above-mentioned vacuum pressure rate of descent=vacuum pressure value changes.
Above-mentioned first system failure comprises: vacuum pump failure, and vacuum pressure sensor fault and vacuum system are leaked; Above-mentioned second system failure comprises: the vacuum pressure sensor fault, vacuum system is leaked.
Judge the method for vacuum pressure sensor fault:
1) described vacuum pressure sensor failure diagnosis unit 71 is carried out trouble diagnosing according to the magnitude of voltage of vacuum pressure sensor 4 output, if when magnitude of voltage surpasses the first preset range value, then judges vacuum pressure sensor 4 faults.
2) after vacuum pressure sensor failure diagnosis unit 71 detects speed-slackening signal, vacuum pressure sensor 4 detected vacuum pressure values before and after relatively braking, if the variation of the vacuum pressure value before and after the braking is then judged vacuum pressure sensor 4 faults less than second preset value.
Determining of more above-mentioned parameters:
1) first setting value: according to the configuration of vacuum reservoir and brake system, set the top pressure value in the vacuum reservoir, when the pneumatics power of taking seriously is no more than this value, brake boost effect preferably can be arranged, such as being arranged to 0.6bar.
2) second setting value: decide according to the speed of exhaust of vacuum pump and the volume of vacuum reservoir, it is fixed to come according to the pressure decay rate of actual measurement.
3) the 3rd setting value: according to the gas leakage situation configuration of vacuum reservoir and system, set the minimal pressure value in the vacuum reservoir, can guarantee that the power consumption when vacuum pump is bled is minimum, can avoid again under rational gas leakage situation, the startup that vacuum pump is frequent is such as being arranged to 0.4bar.
4) the 4th setting value: decide according to the gas leakage situation of system and the volume of vacuum reservoir, it is fixed to come according to the pressure rate of rise of actual measurement.
5) the first preset range value:, decide according to vacuum pressure sensor minimum, maximum magnitude of voltage and the minimum that may exist, max vacuum pressure corresponding voltage value if vacuum pressure sensor output is magnitude of voltage.Scope as the magnitude of voltage of vacuum pressure sensor output is 0.5～4.5V, may exist in the system minimum, peaked vacuum pressure for magnitude of voltage be 0.6～4.0V, can be decided to be 0.6～4.0V to the first preset range value.
6) second preset value:, can survey the variation of the vacuum pressure value under the nonskid braking situation and decide according to the configuration of vacuum reservoir and brake system.
In sum, the utility model embodiment provides a kind of control module of electronlmobil braking vacuum booster device, make braking vacuum booster device have higher reliability by this control module, improved the safety of brake system, and control the unlatching of vacuum pump and stop according to the vacuum pressure value that collects, make in its pressure in guaranteeing vacuum reservoir, reduced the work-hours of electric vacuum pump, reduced the energy resource consumption of car load widely.
The control method of the control module 7 of above-mentioned electronlmobil braking vacuum booster device may further comprise the steps:
Step S21: judge whether vacuum pressure sensor 4 has fault, if execution in step S31 and step S32: the control vacuum pump is worked and fault alarm always; If not, execution in step S22;
Step S22: judge whether the vacuum pressure value exceeds first setting value, if show vacuum degree deficiency this moment, execution in step S23; If not, execution in step S24;
Step S23: control vacuum pump 1 work;
Step S24: judge whether vacuum pump 1 works, if (when vacuum pump 1 work), execution in step S25, if not, execution in step S29;
Step S25: obtain the vacuum pressure rate of descent;
Step S26: under the brakeless situation, whether the vacuum pressure rate of descent that gets access among the determining step S25 greater than second setting value, if not, and execution in step S31 and step S32; If, execution in step S27;
Particularly, if not, show the vacuum system et out of order, its fault content may be vacuum pump failure, vacuum pressure sensor fault and system leak etc., execution in step S31 and step S32.If the absolute value that shows vacuum pressure decline in the unit time is greater than second setting value, vacuum system is working properly.
Step S27: whether the section of declaring vacuum pressure value is less than the 3rd setting value, if show that the degree of vacuum in the vacuum reservoir 4 this moment is enough, execution in step S28; If not, finish this on-cycle control, wait for the execution of next circulation controlling means.
Step S28: close vacuum pump 1;
Step S29: obtain the vacuum pressure escalating rate;
Step S30: under the brakeless situation, whether the vacuum pressure escalating rate that determining step S29 gets access to greater than the 4th setting value, if, execution in step S31 and step S32; If not, show that system is normal, finish this on-cycle control, wait for the execution of next circulation controlling means;
Particularly, if show the vacuum system et out of order, execution in step S31 and step S32; Wherein, its fault content may be vacuum pressure sensor fault and system leak etc.If not, the absolute value that shows vacuum pressure rising in the unit time is smaller or equal to the 4th setting value, and vacuum system is working properly.
Step S31: control vacuum pump 1 work;
Step S32: fault alarm.
Determining of more above-mentioned parameters is identical with embodiment 1, does not repeat them here.
In sum, the utility model embodiment provides a kind of control method of electronlmobil braking vacuum booster device, the utility model embodiment controls the unlatching of vacuum pump according to the vacuum pressure value of the vacuum pressure sensor that collects and stops, when the force value that the pneumatics force gauge of taking seriously is exported rises to the value of setting, the work of control vacuum pump, when the pressure decay of vacuum reservoir arrived setting value, vacuum pump quit work; Also carry out trouble diagnosing according to speed-slackening signal, vacuum pressure value and time information simultaneously, can detect fault and warning better by this method, the needs in the practical application have been satisfied in the safety that has improved the electronlmobil brake system.
Embodiment 2:
See also Fig. 1～Fig. 3, a kind of electronlmobil braking vacuum booster device comprises vacuum booster 5, electric vacuum pump 1, vacuum reservoir 3, vacuum pressure sensor 4 and control module 7; Vacuum booster 5 is connected with brake pedal 9, for brake provides power-assisted; Vacuum pump 1 is communicated with the servo vacuum air chamber of vacuum booster 5 by vacuum reservoir 3, is used for from the gas bleeding of servo vacuum air chamber; Vacuum pressure sensor 4 is used to measure the air pressure in the vacuum reservoir 3, and vacuum pressure sensor 4 is electrically connected with control module 7; The structure of control module 7 is identical with embodiment 1, and its control method is identical with embodiment 2, does not repeat them here.Brake pedal 9 is provided with brake switch or pedal jaw opening sensor 8, is used to control module 7 that braking information is provided, and vacuum booster 5 is connected with brake system 6.Control module 7 also can be integrated in the entire car controller, when wherein electric vacuum pump 1 is worked, by check valve 2 gas in the vacuum reservoir 3 is extracted out, form certain vacuum, vacuum pressure sensor 4 detects the degree of vacuum in the vacuum reservoir 3, brake switch or pedal jaw opening sensor 8 make it detect electronlmobil and whether are in braking procedure for control module 7 provides braking information.
In sum, the utility model embodiment provides a kind of electronlmobil braking vacuum booster device, the vacuum pressure sensor pressure signal that collects by the control module in this device 7 is controlled the unlatching of vacuum pump and is stopped, in the pressure in guaranteeing vacuum reservoir, reduced the work-hours of electric vacuum pump; Also carry out trouble diagnosing, so this device the needs in the practical application have been satisfied guaranteeing that vacuum booster unit has higher reliability according to speed-slackening signal, vacuum pressure value and temporal information.
Embodiment 3:
See also Fig. 1～Fig. 3, the utility model embodiment provides a kind of electronlmobil, this electronlmobil comprises brake system 6, brake pedal 9, control module 7, brake system 6 is connected with brake pedal 9, be connected with 3 described braking vacuum booster devices on the brake pedal 9 as embodiment, the detailed description of braking vacuum booster device referring to embodiment 3, does not repeat them here.By the cooperation between brake system 6, brake pedal 9, the control module 7, improved the safety of electronlmobil brake system, satisfied the needs in the practical application.
In sum, the utility model embodiment provides a kind of electronlmobil, this electronlmobil is by the cooperation between brake pedal and the braking vacuum booster device, improved the safety of electronlmobil brake system, and can lower the energy resource consumption of electronlmobil greatly, satisfy the needs in the practical application.
Although in conjunction with the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (7)
1. the control module of an electronlmobil braking vacuum booster device, it is characterized in that, described control module comprises vacuum pressure sensor failure diagnosis unit and vacuum pressure data acquisition unit, described vacuum pressure data acquisition unit calculates the vacuum pressure value according to the vacuum pressure sensor output voltage values that collects, described vacuum pressure sensor failure diagnosis unit is used to judge whether vacuum pressure sensor has fault, if, control vacuum pump work and fault alarm; If not, controlling described vacuum pump according to the vacuum pressure value opens and stops.
2. control module according to claim 1, it is characterized in that, described control module also comprises the first system fault diagnosis unit, and the described first system fault diagnosis unit comprises that first judgment sub-unit, second judgment sub-unit and first data obtain subelement;
Described first judgment sub-unit is used for when described vacuum pressure sensor failure diagnosis unit is judged described vacuum pressure sensor trouble free, judge whether described vacuum pump works, when described vacuum pump was worked, described first data were obtained subelement and are obtained the vacuum pressure rate of descent;
Described second judgment sub-unit judges that whether described first data obtain vacuum pressure rate of descent that subelement gets access to greater than second setting value under the brakeless situation, if not, control described vacuum pump work and fault alarm.
3. control module according to claim 2 is characterized in that, described control module also comprises the second system fault diagnosis unit, and the described second system fault diagnosis unit comprises that second data obtain subelement and the 3rd judgment sub-unit;
When described second data are obtained result that subelement judges in described first judgment sub-unit for described vacuum air pump inoperative, obtain the vacuum pressure escalating rate;
Described the 3rd judgment sub-unit judges that whether described second data obtain vacuum pressure escalating rate that subelement gets access to greater than the 4th setting value under the brakeless situation, if, control described vacuum pump work and fault alarm, if not, Control Circulation finishes.
4. control module according to claim 1, it is characterized in that, described vacuum pressure sensor failure diagnosis unit is carried out trouble diagnosing according to the magnitude of voltage of vacuum pressure sensor output, if when magnitude of voltage surpasses the first preset range value, then judges the vacuum pressure sensor fault.
5. control module according to claim 1, it is characterized in that, after described vacuum pressure sensor failure diagnosis unit detects speed-slackening signal, vacuum pressure value before and after relatively braking, if the variation of the vacuum pressure value before and after the braking is then judged the vacuum pressure sensor fault less than second preset value.
6. an electronlmobil braking vacuum booster device is characterized in that, described brake work-saving device comprises any described control module of claim in the claim 1～5.
7. an electronlmobil is characterized in that, described electronlmobil comprises the braking vacuum booster device described in the claim 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201989668U CN201670225U (en) | 2010-05-21 | 2010-05-21 | Control module, brake vacuum boosting device and electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201989668U CN201670225U (en) | 2010-05-21 | 2010-05-21 | Control module, brake vacuum boosting device and electric automobile |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101830214A (en) * | 2010-05-21 | 2010-09-15 | 天津清源电动车辆有限责任公司 | Control module, control method, brake vacuum servo device and electric automobile |
| CN102371984A (en) * | 2011-08-29 | 2012-03-14 | 温州大学 | Vacuum boosting device of electric vehicle |
| CN103359098A (en) * | 2012-03-27 | 2013-10-23 | 北汽福田汽车股份有限公司 | Electromobile control method |
| CN103476650A (en) * | 2011-01-24 | 2013-12-25 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method for monitoring the signal value of a vacuum sensor |
| CN103770767A (en) * | 2012-10-22 | 2014-05-07 | 财团法人车辆研究测试中心 | Electronic type vacuum brake power assisting system |
| CN106394540A (en) * | 2016-11-28 | 2017-02-15 | 中环天仪股份有限公司 | Intelligent brake boosting control system and method of electric vehicle |
| CN108515957A (en) * | 2018-04-25 | 2018-09-11 | 浙江吉利汽车研究院有限公司 | Fault detection method, system and automobile |
| CN108583559A (en) * | 2018-04-25 | 2018-09-28 | 吉利汽车研究院（宁波）有限公司 | Fault detection method, system and automobile |
| CN110500710A (en) * | 2019-07-30 | 2019-11-26 | 广东申菱环境系统股份有限公司 | A kind of air-conditioning fault self-diagnosis method |
| CN110936944A (en) * | 2019-09-29 | 2020-03-31 | 浙江合众新能源汽车有限公司 | Electric vehicle vacuum pump signal diagnosis method and system |
| CN111376883A (en) * | 2018-12-29 | 2020-07-07 | 比亚迪股份有限公司 | Vehicle and vacuum pump control method and device thereof |
| CN113715795A (en) * | 2020-05-22 | 2021-11-30 | 广州汽车集团股份有限公司 | Vacuum pressure sensor validity checking method and system |
| CN114043979A (en) * | 2021-12-16 | 2022-02-15 | 东风汽车集团股份有限公司 | Fault diagnosis and post-processing method and system for brake vacuum pump of electric automobile |
| CN114056313A (en) * | 2022-01-17 | 2022-02-18 | 万向钱潮股份有限公司 | Fault diagnosis method for multi-axis commercial vehicle line control brake system |
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2010
- 2010-05-21 CN CN2010201989668U patent/CN201670225U/en not_active Expired - Lifetime
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| CN101830214A (en) * | 2010-05-21 | 2010-09-15 | 天津清源电动车辆有限责任公司 | Control module, control method, brake vacuum servo device and electric automobile |
| CN101830214B (en) * | 2010-05-21 | 2013-02-06 | 天津清源电动车辆有限责任公司 | Control module, control method, brake vacuum servo device and electric automobile |
| CN103476650A (en) * | 2011-01-24 | 2013-12-25 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method for monitoring the signal value of a vacuum sensor |
| CN103476650B (en) * | 2011-01-24 | 2016-02-10 | 大陆-特韦斯贸易合伙股份公司及两合公司 | For monitoring the method for the signal value of vacuum transducer |
| CN102371984A (en) * | 2011-08-29 | 2012-03-14 | 温州大学 | Vacuum boosting device of electric vehicle |
| CN103359098A (en) * | 2012-03-27 | 2013-10-23 | 北汽福田汽车股份有限公司 | Electromobile control method |
| CN103359098B (en) * | 2012-03-27 | 2015-10-28 | 北汽福田汽车股份有限公司 | The control method of electronlmobil |
| CN103770767A (en) * | 2012-10-22 | 2014-05-07 | 财团法人车辆研究测试中心 | Electronic type vacuum brake power assisting system |
| CN103770767B (en) * | 2012-10-22 | 2016-08-10 | 财团法人车辆研究测试中心 | Electronic type vacuum brake force aid system |
| CN106394540A (en) * | 2016-11-28 | 2017-02-15 | 中环天仪股份有限公司 | Intelligent brake boosting control system and method of electric vehicle |
| CN108515957A (en) * | 2018-04-25 | 2018-09-11 | 浙江吉利汽车研究院有限公司 | Fault detection method, system and automobile |
| CN108583559A (en) * | 2018-04-25 | 2018-09-28 | 吉利汽车研究院（宁波）有限公司 | Fault detection method, system and automobile |
| CN108515957B (en) * | 2018-04-25 | 2020-07-07 | 浙江吉利汽车研究院有限公司 | Fault detection method and system and automobile |
| CN111376883A (en) * | 2018-12-29 | 2020-07-07 | 比亚迪股份有限公司 | Vehicle and vacuum pump control method and device thereof |
| CN111376883B (en) * | 2018-12-29 | 2021-08-10 | 比亚迪股份有限公司 | Vehicle and vacuum pump control method and device thereof |
| CN110500710A (en) * | 2019-07-30 | 2019-11-26 | 广东申菱环境系统股份有限公司 | A kind of air-conditioning fault self-diagnosis method |
| CN110500710B (en) * | 2019-07-30 | 2021-07-20 | 广东申菱环境系统股份有限公司 | Air conditioner fault self-diagnosis method |
| CN110936944A (en) * | 2019-09-29 | 2020-03-31 | 浙江合众新能源汽车有限公司 | Electric vehicle vacuum pump signal diagnosis method and system |
| CN113715795A (en) * | 2020-05-22 | 2021-11-30 | 广州汽车集团股份有限公司 | Vacuum pressure sensor validity checking method and system |
| CN114043979A (en) * | 2021-12-16 | 2022-02-15 | 东风汽车集团股份有限公司 | Fault diagnosis and post-processing method and system for brake vacuum pump of electric automobile |
| CN114056313A (en) * | 2022-01-17 | 2022-02-18 | 万向钱潮股份有限公司 | Fault diagnosis method for multi-axis commercial vehicle line control brake system |
| CN114056313B (en) * | 2022-01-17 | 2022-04-22 | 万向钱潮股份有限公司 | Fault diagnosis method for multi-axis commercial vehicle line control brake system |
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