Blade type hydraulic flow deceleration sensor and deceleration method

Abstract

The invention discloses a blade type hydraulic flow deceleration sensor and a deceleration method. The deceleration sensor comprises a shell, a rotating shaft, a damping plate and a variable resistorare arranged in the shell, the damping plate is in linkage with the variable resistor, the damping plate rotates under the hydraulic action, the rotating shaft is connected with the damping plate through a return spring, the variable resistor converts the rotating angle of the damping plate into the rotating radian of the variable resistor, and the damping plate is of a blade type. When an automobile runs at a high speed and brakes, hydraulic oil is compressed to push the damping plate to rotate, and when the rotating shaft and the return spring swing, the hydraulic oil passes, and the resistance of the variable resistor changes. When the damping plate is kept at a certain opening degree, the resistance value of a potentiometer is also kept at a certain value, and at the moment, the measuring end of the potentiometer transmits signal voltage to an ECU of an ABS. When the set resistance value and pressure value range is reached, the ABS starts to prevent locking. The mode that a brake pedal is combined with hydraulic oil and the arc-shaped variable resistor is adopted, electric signals are conveniently transmitted in time, ABS starting hysteresis is avoided, and starting time is shortened.

Description

technical field [0001] The invention relates to a sensor, in particular to a vane type hydraulic flow deceleration sensor and a deceleration method. Background technique [0002] At present, the deceleration sensor is mainly used to detect the deceleration of the car when braking, and convert the deceleration into an electrical signal and input it to the anti-lock braking electronic control unit ABSECU, so as to judge the road surface condition and take corresponding control measures. The information generated by the speed sensor is supplemented and corrected to improve the accuracy of controlling the wheel slip rate. The deceleration sensor can distinguish whether the vehicle is under general deceleration braking or emergency braking. However, the braking linkage of automobiles is relatively poor, and the ABS cannot be started conveniently and quickly in time, and the ABS starts lagging behind, which delays the braking start time. Contents of the invention [0003] Purpo...

AI Technical Summary

Problems solved by technology

However, the brake linkage of the car is poor, and the ABS cannot be started conveniently and quickly in time. The ABS start lags behind, which delays the brake start time.

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