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Trailer connection state judgment method and device, vehicle and storage medium

A connected state, open circuit state technology, applied in vehicle components, transportation and packaging, circuits or fluid pipelines, etc., can solve problems such as high cost and complex layout

Active Publication Date: 2020-01-17
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a method, device, vehicle and storage medium for judging the connection state of a trailer, so as to solve the technical problems of complex arrangement and high cost of the current judging mode of the connection state of a trailer

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  • Trailer connection state judgment method and device, vehicle and storage medium
  • Trailer connection state judgment method and device, vehicle and storage medium
  • Trailer connection state judgment method and device, vehicle and storage medium

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Embodiment Construction

[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0045] With the wide application of large-scale integrated circuit (LSI), the processing power of central processing unit (Central Processing Unit, CPU) is getting stronger and stronger, and the external resources are very abundant, so it is easy to realize data acquisition and logical judgment . The development of automotive electronic controllers is becoming more and more concentrated, such as Body Control Module (BCM) and so on. Because the integrated power driver chip has the advantages of high integration, l...

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Abstract

The invention discloses a trailer connection state judgment method and device, a vehicle and a storage medium. The method comprises the following steps of when it is determined that an ignition switchis on and the vehicle speed is smaller than a vehicle speed threshold, determining whether an ABS fault signal of a trailer is effective or not and determining whether a vehicle lamp operation effective signal of the trailer is collected or not; when it is determined that the vehicle lamp operation effective signal of the trailer is collected, sending a vehicle lamp operation effective signal toa target lamp indicated in the vehicle lamp operation effective signal, collecting a first working current of the target lamp, judging whether the target lamp is in an open-circuit state or not according to the first working current, and determining that the trailer is in a connection state when it is determined that the target lamp is not in the open-circuit state or the ABS fault signal is effective. The redundancy judgment of the trailer connection state is achieved by combining the ABS fault signal and the working condition of the trailer lamp, on one hand, additional hardware devices do not need to be added, and on the other hand, the real-time performance and accuracy of the trailer connection state are guaranteed.

Description

technical field [0001] Embodiments of the present invention relate to the field of commercial vehicle electronics, and in particular, to a method, device, vehicle, and storage medium for judging the connection state of a trailer. Background technique [0002] With the rapid development of social economy and the continuous improvement of people's material needs, tractors and trailers are currently being used more and more in the commodity transportation industry. In order to realize the tractor's control over the power and braking performance of the trailer, it is necessary to know the connection status of the trailer and the tractor in real time. [0003] At present, the connection state of the trailer can be determined in the following way: add a switch at the connection between the tractor and the trailer, and judge the connection state of the trailer by detecting the state of the switch. The detection switch can be a sensor device that detects whether the tractor is conne...

Claims

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Application Information

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IPC IPC(8): B60R16/023
CPCB60R16/0232
Inventor 张辉苏朋军孙连明
Owner FAW JIEFANG AUTOMOTIVE CO
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