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A kind of electronic parking system and method based on CAN bus control

A CAN bus and electronic parking technology, applied in brakes, vehicle parts, transportation and packaging, etc., can solve the problems of electronic parking system application in new energy buses, and achieve the effect of simple structure, convenient operation and easy realization

Active Publication Date: 2020-11-06
DONGFENG AUTOMOBILE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of various technical conditions, the current electronic parking system is rarely used in new energy buses

Method used

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  • A kind of electronic parking system and method based on CAN bus control
  • A kind of electronic parking system and method based on CAN bus control
  • A kind of electronic parking system and method based on CAN bus control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An electronic parking system based on CAN bus control. The two air outlets of the differential valve 1 are respectively connected to a rear axle spring air chamber 2, and the air source 3 is connected to the air inlet of the differential valve 1 and the storage tank through a three-way pipe joint. The first two-position three-way solenoid valve 5, the normally closed solenoid valve 6 and the second two-position three-way solenoid valve are sequentially arranged between the air inlet of the air cylinder 4, the air outlet of the air storage cylinder 4 and the control port of the differential valve 1 7. Both the first two-position three-way valve and the second two-position three-way valve are connected to the manual control valve 8, the first two-position three-way solenoid valve 5, the normally closed solenoid valve 6 and the second two-position three-way solenoid valve 7 The control terminals are all connected to the control signal output terminal of the vehicle controll...

Embodiment 2

[0031] A kind of electronic parking method based on CAN bus control that utilizes above-mentioned system to carry out, comprises:

[0032] Step 1, the vehicle controller obtains the hard-wired signal of the automatic driving mode in real time, and judges whether the car is in the automatic driving mode, and if so, proceeds to step 2, and if not, proceeds to step 6;

[0033] Step 2, the vehicle controller obtains the throttle depth;

[0034] Step 3, judging whether the throttle depth is greater than or equal to 5% of the preset ratio, if yes, go to step 4, if not, go to step 5;

[0035] Step 4, the vehicle controller controls port 1 and port 2 of the first two-position three-way valve to communicate, the vehicle controller controls port 1 and port 2 of the second two-position three-way valve to communicate, and the vehicle controller controls normally closed Electromagnetic valve 6 enters the ON gear to realize driving;

[0036] Step 5, the vehicle controller obtains the real...

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PUM

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Abstract

The invention discloses an electronic parking system based on CAN bus control. A first two-position three-way magnetic valve, a normally closed magnetic valve and a second wo-position three-way magnetic valve are sequentially arranged between an air outlet of an air storage cylinder and and a parking control port of a differential valve, a vehicle speed signal input end of a whole vehicle controller is connected with a whole vehicle combination instrument to acquire a vehicle speed signal, a vehicle accelerator pedal is provided with a depth sensor, and the signal output end of the depth sensor is connected to the signal input end of the whole vehicle controller to acquire an accelerator depth signal. The invention also discloses an electronic parking method based on CAN bus control. The electronic parking system has the advantages of simple structure, convenient operation and easy achievement.

Description

technical field [0001] The invention belongs to the technical field of braking systems for new energy passenger cars, and in particular relates to an electronic parking system and method based on bus control. Background technique [0002] With the rapid development of new energy buses, the electronic parking system is favored by more and more car dealers because of its convenient operation and high safety performance. However, due to the limitations of various technical conditions, the current electronic parking system is rarely used in new energy buses. Invention content: [0003] In order to overcome the above-mentioned defects of the background technology, the present invention provides an electronic parking system and method based on bus control. [0004] In order to solve the problems of the technologies described above, the adopted technical solution of the present invention is: [0005] An electronic parking system based on CAN bus control. The two air outlets of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/68
CPCB60T13/662B60T13/683
Inventor 朱久艳戈小中姜敬发邝勇刘俊王庆新冯根伍耿吉军
Owner DONGFENG AUTOMOBILE COMPANY
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