Automobile steering transmission ratio measuring device and method

A technology of steering transmission and measurement device, which is applied in the direction of vehicle steering/bump performance, etc., can solve the problems of inaccurate front wheel rotation angle and inaccurate calculation of steering transmission ratio, achieve accurate front wheel rotation angle data, and avoid inaccurate front wheel rotation angle. , The effect of easy installation and adjustment

Pending Publication Date: 2017-05-31
JILIN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an automobile steering transmission ratio measurement device and method which can accurately measure the steering transmission ratio of the automobile to obtain the front wheel angle. The problem of inaccurate corners

Method used

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  • Automobile steering transmission ratio measuring device and method
  • Automobile steering transmission ratio measuring device and method
  • Automobile steering transmission ratio measuring device and method

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Embodiment Construction

[0025] refer to figure 1 , Figure 4 , a vehicle real steering transmission ratio measuring device, the measuring device includes a vehicle speed sensor 1, a multi-turn angle sensor 2, a yaw rate sensor 3 and a signal processing module; the vehicle speed sensor 1 is sucked firmly on the front of the vehicle using a vacuum suction cup on the flat surface of the middle position; the multi-turn angle sensor 2 is fixed below the steering wheel; the yaw rate sensor 3 is installed next to the center of mass of the car; the signal processing module includes an interface circuit, a CAN bus controller and The single-chip microcomputer of A / D converter; The output end of described multi-turn angle sensor 2 and yaw rate sensor 3 is connected with the input end of interface circuit; The output end of described interface circuit is converted with the A / D that single-chip microcomputer carries The input interface is connected; the vehicle speed sensor 1 is connected with the input interfac...

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Abstract

The invention belongs to the technical field of an automobile, and particularly relates to an automobile steering transmission ratio measuring device and method. The measurement device comprises a vehicle speed sensor, a multi-ring angle sensor, a transverse swinging angle speed sensor and a signal processing module, wherein the signal processing module comprises an interface circuit and a single chip microcomputer; the single chip microcomputer is provided with a CAN (controller area network) bus controller and an A / D (analog-to-digital) converter; the output ends of the multi-ring angle sensor and the transverse swinging angle speed sensor are connected with the input ends of the interface circuit; the output end of the interface circuit is connected with a self A / D conversion input interface of the single chip microcomputer; the vehicle speed sensor is connected with the input interface of the single chip microcomputer through the output end of a tracking wave filter; the output end of the single chip microcomputer is connected with an ECU (electronic control unit) through the CAN bus. The device and the method provided by the invention belongs to the automobile steering transmission ratio measuring device and method capable of precisely measuring the automobile steering transmission ratio so as to obtain the front wheel rotating angle; the measuring device and the measuring method solve the problem of front wheel rotating angle inaccuracy due to imprecise automobile steering ratio in the prior art.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and in particular relates to a device and method for measuring steering gear ratios of automobiles. Background technique [0002] The car steering system is a special mechanism to ensure that the car can turn according to the driver's will. The steering gear ratio is the ratio of the steering wheel angle to the front wheel angle, and the steering wheel angle can be converted into the front wheel angle. At present, some cars measure the steering gear ratio instead of the steering gear ratio to calculate the front wheel angle, but because the steering rod Due to the existence of the system, the actual steering transmission ratio is not equal to the steering gear transmission ratio. However, many automotive control systems require accurate front wheel angle signals, and the cost of directly measuring the front wheel angle signals is high, it is difficult to arrange sensors, and because the fron...

Claims

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Application Information

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IPC IPC(8): G01M17/06
CPCG01M17/06
Inventor 靳立强张卉王天怡
Owner JILIN UNIV
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