CN102416872A - Method and device for acquiring vehicle speed signal for automobile combination instrument - Google Patents
Method and device for acquiring vehicle speed signal for automobile combination instrument Download PDFInfo
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- CN102416872A CN102416872A CN2011103110226A CN201110311022A CN102416872A CN 102416872 A CN102416872 A CN 102416872A CN 2011103110226 A CN2011103110226 A CN 2011103110226A CN 201110311022 A CN201110311022 A CN 201110311022A CN 102416872 A CN102416872 A CN 102416872A
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- 238000004891 communication Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention relates to a method and device for acquiring a vehicle speed signal for an automobile combination instrument. The method comprises the following steps: a combination instrument module ICM (Interference Control Monitor) preferably acquires a vehicle speed signal provided by a braking module BSM (Basic Storage Module); and when an ABS (Antilock Brake System) wheel speed sensor fails and the braking module BSM cannot provide a vehicle speed signal, the combination instrument module ICM acquires a vehicle speed signal provided by a gearbox control module TCU (Tape Control Unit).
Description
Technical field
The present invention relates to a kind of automobile combination meter and gather the method and the device of GES.
Background technology
In the prior art, the ABS wheel speed sensors provides GES for brake module BSM, and automobile combination meter can be gathered GES through brake module BSM, and automobile combination meter can also directly be gathered the GES that car speed sensor provides.On with a combination instrument, combination instrument can be gathered GES according to the priority of signal, for example preferentially gathers the car speed sensor signal, and car speed sensor occurs gathering the GES that brake module BSM provides again when unusual, otherwise perhaps.But when car speed sensor and ABS wheel speed sensors all break down, when perhaps ABS module and brake module BSM all break down, combination instrument can not be received GES, cause the potential safety hazard of car load.
Summary of the invention
The object of the invention is to provide a kind of automobile combination meter to gather the method and the device of GES, makes combination instrument convenient, reliable to the collection of GES.
The present invention is based on same inventive concept, have two independent technique schemes:
1, a kind of automobile combination meter is gathered the method for GES, and it is characterized in that: combination instrument module I CM preferentially gathers the GES that brake module BSM provides; When the ABS wheel speed sensors breaks down, when brake module BSM can not provide GES, combination instrument module I CM gathered the GES that change speed gear box control module TCU provides.
When brake module BSM and change speed gear box control module TCU all can not provide GES, combination instrument module I CM gathered the GES of car speed sensor.
Car speed sensor can provide GES for taximeter simultaneously.
2, a kind of device of realizing aforementioned automobile combination meter collection GES method; It is characterized in that: brake module BSM, change speed gear box control module TCU are connected with Body control module BCM through the CAN bus respectively, and Body control module BCM is connected with combination instrument module I CM through the CAN bus.
Brake module BSM and change speed gear box control module TCU are the high speed node of CAN network, and combination instrument module I CM is the low speed node of CAN network, and Body control module BCM is the gateway of high-speed CAN signal and the conversion of low speed CAN signal.
Car speed sensor is connected with combination instrument module I CM communication.
Car speed sensor is connected with the fee register communication of taxicar.
The beneficial effect that the present invention has:
Combination instrument module I CM of the present invention preferentially gathers the GES that brake module BSM provides; When the ABS wheel speed sensors breaks down, when brake module BSM can not provide GES, combination instrument module I CM gathered the GES that change speed gear box control module TCU provides; When brake module BSM and change speed gear box control module TCU all can not provide GES; Combination instrument module I CM gathers the GES of car speed sensor; Guarantee that combination instrument can collect stable GES, it is more reliable to work, for driver and crew provide safety control.
Brake module BSM of the present invention and change speed gear box control module TCU are the high speed node of CAN network; Combination instrument module I CM is the low speed node of CAN network; Body control module BCM is the gateway of high-speed CAN signal and the conversion of low speed CAN signal; Distinctive system architecture is convenient to be implemented, and improves the picking rate of GES.Car speed sensor is connected with combination instrument module I CM communication.
In addition, car speed sensor can be connected with the fee register difference communication of combination instrument and taxicar, and promptly car speed sensor both can provide GES to fee register, also can GES be provided to combination instrument, and system design is hommization more.
Description of drawings
Accompanying drawing is a system architecture topological diagram of the present invention.
The specific embodiment
As shown in the figure; ABS wheel speed sensors signal output termination brake module BSM; Brake module BSM, change speed gear box control module TCU are connected with Body control module BCM through the CAN bus respectively, and Body control module BCM is connected with combination instrument module I CM through the CAN bus.Brake module BSM and change speed gear box control module TCU are the high speed node of CAN network, and combination instrument module I CM is the low speed node of CAN network, and Body control module BCM is the gateway of high-speed CAN signal and the conversion of low speed CAN signal.Car speed sensor is connected with combination instrument module I CM through the PIN connection lead, and when vehicle was taxicar, car speed sensor also was connected with fee register through the PIN connection lead.
The ABS wheel speed sensors is sent to brake module BSM with GES, and combination instrument module I CM preferentially gathers the GES that brake module BSM provides, and carries out speed of a motor vehicle demonstration and mileage and calculates; When the ABS wheel speed sensors breaks down, when brake module BSM can not provide GES, combination instrument module I CM gathered the GES that change speed gear box control module TCU provides.When brake module BSM and change speed gear box control module TCU all can not provide GES, combination instrument module I CM gathered the GES of car speed sensor.When vehicle was taxicar, directly from the PIN interface acquired signal of car speed sensor, promptly car speed sensor both can provide GES to fee register to fee register, also can GES be provided to combination instrument.
Claims (7)
1. an automobile combination meter is gathered the method for GES, and it is characterized in that: combination instrument module I CM preferentially gathers the GES that brake module BSM provides; When the ABS wheel speed sensors breaks down, when brake module BSM can not provide GES, combination instrument module I CM gathered the GES that change speed gear box control module TCU provides.
2. automobile combination meter according to claim 1 is gathered the method for GES; It is characterized in that: when brake module BSM and change speed gear box control module TCU all can not provide GES, combination instrument module I CM gathered the GES of car speed sensor.
3. automobile combination meter according to claim 2 is gathered the method for GES, and it is characterized in that: car speed sensor can provide GES for taximeter simultaneously.
4. realize that the said automobile combination meter of claim 1 gathers the device of GES method for one kind; It is characterized in that: brake module BSM, change speed gear box control module TCU are connected with Body control module BCM through the CAN bus respectively, and Body control module BCM is connected with combination instrument module I CM through the CAN bus.
5. device according to claim 4; It is characterized in that: brake module BSM and change speed gear box control module TCU are the high speed node of CAN network; Combination instrument module I CM is the low speed node of CAN network, and Body control module BCM is the gateway of high-speed CAN signal and the conversion of low speed CAN signal.
6. device according to claim 5 is characterized in that: car speed sensor is connected with combination instrument module I CM communication.
7. device according to claim 6 is characterized in that: car speed sensor is connected with the fee register communication of taxicar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103110226A CN102416872A (en) | 2011-10-14 | 2011-10-14 | Method and device for acquiring vehicle speed signal for automobile combination instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103110226A CN102416872A (en) | 2011-10-14 | 2011-10-14 | Method and device for acquiring vehicle speed signal for automobile combination instrument |
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| Publication Number | Publication Date |
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| CN102416872A true CN102416872A (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103110226A Pending CN102416872A (en) | 2011-10-14 | 2011-10-14 | Method and device for acquiring vehicle speed signal for automobile combination instrument |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874118A (en) * | 2012-10-12 | 2013-01-16 | 力帆实业(集团)股份有限公司 | Device and method for automatically judging instrument speed signal source |
| CN103085736A (en) * | 2013-02-21 | 2013-05-08 | 北京汽车股份有限公司 | Vehicle speed signal secure transmission system, method and vehicle |
| CN103264672A (en) * | 2013-05-10 | 2013-08-28 | 奇瑞汽车股份有限公司 | ABS (antilock brake system) vehicle speed and mileage transmission method and system |
| CN109017800A (en) * | 2018-08-27 | 2018-12-18 | 汽解放汽车有限公司 | A kind of commercial vehicle vehicle speed processing device based on entire car controller |
| CN109344609A (en) * | 2018-08-31 | 2019-02-15 | 惠州市德赛西威汽车电子股份有限公司 | A kind of TCU module, TCU system and guard method |
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| JPH02310137A (en) * | 1989-05-24 | 1990-12-25 | Mitsubishi Electric Corp | Communication system of electronic equipment for automobile |
| US20050073399A1 (en) * | 2003-09-24 | 2005-04-07 | Ryuzo Tsuruhara | Speedometer control system and speedometer control method |
| CN101712304A (en) * | 2009-12-18 | 2010-05-26 | 浙江吉利汽车研究院有限公司 | Vehicle speed signal processing system |
| CN102050066A (en) * | 2010-12-20 | 2011-05-11 | 浙江吉利汽车研究院有限公司 | Automobile speed signal processing method |
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2011
- 2011-10-14 CN CN2011103110226A patent/CN102416872A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02310137A (en) * | 1989-05-24 | 1990-12-25 | Mitsubishi Electric Corp | Communication system of electronic equipment for automobile |
| US20050073399A1 (en) * | 2003-09-24 | 2005-04-07 | Ryuzo Tsuruhara | Speedometer control system and speedometer control method |
| CN101712304A (en) * | 2009-12-18 | 2010-05-26 | 浙江吉利汽车研究院有限公司 | Vehicle speed signal processing system |
| CN102050066A (en) * | 2010-12-20 | 2011-05-11 | 浙江吉利汽车研究院有限公司 | Automobile speed signal processing method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874118A (en) * | 2012-10-12 | 2013-01-16 | 力帆实业(集团)股份有限公司 | Device and method for automatically judging instrument speed signal source |
| CN103085736A (en) * | 2013-02-21 | 2013-05-08 | 北京汽车股份有限公司 | Vehicle speed signal secure transmission system, method and vehicle |
| CN103085736B (en) * | 2013-02-21 | 2015-04-15 | 北京汽车股份有限公司 | Vehicle speed signal secure transmission system, method and vehicle |
| CN103264672A (en) * | 2013-05-10 | 2013-08-28 | 奇瑞汽车股份有限公司 | ABS (antilock brake system) vehicle speed and mileage transmission method and system |
| CN103264672B (en) * | 2013-05-10 | 2016-03-16 | 奇瑞汽车股份有限公司 | A kind of ABS speed of a motor vehicle and mileage transmission method and system |
| CN109017800A (en) * | 2018-08-27 | 2018-12-18 | 汽解放汽车有限公司 | A kind of commercial vehicle vehicle speed processing device based on entire car controller |
| CN109017800B (en) * | 2018-08-27 | 2024-03-19 | 一汽解放汽车有限公司 | Commercial vehicle speed processing device based on whole vehicle controller |
| CN109344609A (en) * | 2018-08-31 | 2019-02-15 | 惠州市德赛西威汽车电子股份有限公司 | A kind of TCU module, TCU system and guard method |
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Application publication date: 20120418 |