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Vehicle speed signal secure transmission system, method and vehicle

A signal security and transmission system technology, applied in the field of vehicle speed signal security transmission system, can solve the problems of weak control strategy and single vehicle speed signal, and achieve the effect of improving road safety and ensuring normal implementation

Active Publication Date: 2013-05-08
BAIC MOTOR CORP LTD
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  • Abstract
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Problems solved by technology

At present, the CAN network of automobiles has been widely used, so many instruments are connected to the CAN network, and the vehicle speed is obtained through the CAN bus. However, the source of the vehicle speed signal is relatively single, and the control strategy is relatively fragile. Once the vehicle speed sensor or wheel speed sensor appears failure, it will bring many potential risks

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  • Vehicle speed signal secure transmission system, method and vehicle
  • Vehicle speed signal secure transmission system, method and vehicle

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Embodiment Construction

[0033] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0034] A vehicle speed signal safe transmission system, comprising: a vehicle speed sensor, a wheel speed sensor, an electronic stability control module, a transmission control module, a vehicle body control module, a parking assistance module, a combination instrument unit and a gateway; wherein, the vehicle speed sensor and the The transmission control module and the instrument cluster unit are connected through wires; the wheel speed sensor is connected with the electronic stability control module through wires; both the electronic stability control module and the transmission control module are connected with the power CAN bus; the combination Both the instrument unit and the gateway are connected to the power CAN bus, and both are connected to the bo...

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Abstract

The invention provides vehicle speed signal secure transmission system, method and vehicle. The vehicle speed signal secure transmission system comprises a vehicle speed sensor, a wheel speed sensor, an electric stable control module, a speed changer control module, a vehicle body control module, a parking auxiliary module, a combination meter unit and a gateway. When the wheel speed sensor fails to output signals properly, the electric stable control module can figure out a real time vehicle speed signal virtual storage-escape character(VS-ESC) according to self-collected wheel speed signals and send the signals to a power controller area network (CAN) bus. With the adoption of the technical scheme, the vehicles can be ensured to transmit reliable vehicle speed signals in real time, and driving safety is improved to the largest extent.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a vehicle speed signal safe transmission system, method and vehicle. Background technique [0002] Accurate acquisition and display of vehicle speed is of vital importance to drivers and driving operations. Especially with the rapid development of current automobile active safety technology, some active safety systems such as lane departure warning system, adaptive cruise system, etc. Make sure these systems are working properly. The current mature CAN (Controller Area Network) network technology makes it possible to exchange information in a timely manner among the various control systems of the vehicle, but the reliability of the signal still needs certain control strategies to support it. [0003] At present, there are mainly two forms of analog signals and CAN digital signals for the electronic control unit of automobiles to obtain signals. For example, there are two ways...

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Application Information

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IPC IPC(8): B60R16/02B60K35/00
Inventor 高宏国朱恩利李武斌石刚董利伟陈娟
Owner BAIC MOTOR CORP LTD
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