Method and device for establishing communication between vehicle diagnostic equipment and vehicle, and vehicle communication interface equipment
A technology for vehicle diagnosis and vehicle communication, which is applied in the directions of registering/instructing the operation of vehicles, data exchange through path configuration, instruments, etc., which can solve the problems of redundant line connections and achieve the effect of simple and fast distribution.
Active Publication Date: 2021-10-15
深圳市道通合盛软件开发有限公司
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Problems solved by technology
Obviously, when there are many CAN controllers and communication pins in this scheme, the number of switches required when distributing CAN controllers is relatively large, resulting in more complicated line connections
Method used
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[0067] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0068] In order to make the purpose, technical solution and advantages of the present application clearer, the present application 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 application, not to limit the present application.
[0069] It should be noted that, if there is no conflict, various features in the embodiments of the present...
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The embodiment of the present invention relates to the field of automobile technology, and discloses a method for establishing communication between an automobile diagnostic device and a vehicle. The CAN controller in the idle state in the CAN controller then sets the communication parameters for the CAN controller in the idle state, and further, when receiving the designated communication pin group of the automotive diagnostic equipment, it is determined to connect to the designated communication pin group Whether the CAN controller is in an idle state, if so, establish a communication channel from the vehicle diagnostic device to the specified pin group through the communication parameters in the CAN controller connected to the specified communication pin group, so that the vehicle diagnostic device can pass through the specified pin group The group communicates with the vehicle, this method does not need to set a switch between the CAN controller and the communication pin group, and can realize the simple and fast allocation of the CAN controller.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of automobiles, in particular to a method and device for establishing communication between an automobile diagnostic device and a vehicle, and an automobile communication interface device. Background technique [0002] With the development of automobile technology, CAN bus is used more and more widely in automobiles. At present, there are cars on the market that use 3 sets of CAN buses for communication, and in the future they may use 4 or more sets of CAN buses for communication at the same time, which will undoubtedly increase the complexity of establishing communication channels between automotive diagnostic equipment and vehicles. [0003] When the diagnostic equipment diagnoses the car, it usually needs to allocate the CAN controller in the process of establishing the channel connection. Since it may not be possible to determine which group of communication pins communicates wi...
Claims
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IPC IPC(8): H04L12/40
CPCH04L12/40006H04L2012/40215H04L2012/40273H04L12/40013H04L12/40019G07C5/008G07C5/0808G07C2205/02
Inventor 姜楚瞿松松
Owner 深圳市道通合盛软件开发有限公司