Wheel speed sensor testing machine

A wheel speed sensor and testing machine technology, which is used in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, instruments, etc., and can solve problems such as inconvenient operation and complex structure
CN102279286AInactive Publication Date: 2011-12-14鼎佳(天津)汽车电子有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
鼎佳(天津)汽车电子有限公司
Publication Date
2011-12-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a wheel speed sensor testing machine, which is characterized in that it comprises a base, a casing, a DC motor, a ring gear and a wheel speed sensor mounting frame. When the present invention is used, the wheel speed sensor is vertically or horizontally clamped on the wheel speed sensor mounting frame, so that the probe of the wheel speed sensor is close to the ring gear, and when the DC motor drives the ring gear to rotate, the induced voltage generated by the wheel speed sensor Inputting it into the oscilloscope, the tester can easily check the working condition of the wheel speed sensor, and the tester can adjust the speed of the DC motor through the speed control knob to detect the wheel speed sensor, which is very convenient.
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Description

technical field

[0001] The invention relates to the technical field of wheel speed sensors, in particular to a wheel speed sensor testing machine. Background technique

[0002] In the ABS system of the vehicle, the wheel speed sensor transmits the speed signal of the wheel to the ECU, and the ECU calculates and obtains the current rotation speed of the wheel. The probes of the wheel speed sensor are installed on the outer side of the ring gear installed on the wheel at intervals. When the tooth peaks and tooth valleys on the ring gear pass through the wheel speed sensor, the magnetic field strength changes, and the induced voltage is proportional to the wheel speed. After conversion by the ECU, the The number of revolutions of the wheels, the ECU repeatedly reduces or increases the brake pressure on the wheels to control the slippage rate of the wheels according to the current speed. It can be seen that the normal operation of the wheel speed sensor is directly related to th...

Claims

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