Passenger car emergency braking multifunctional auxiliary wheel mechanism and control method thereof

Abstract

The invention discloses a passenger vehicle emergency braking multifunctional auxiliary wheel mechanism which comprises telescopic columns, crank-shaped wheel legs, a wheel shaft, an auxiliary small wheel and a brake mechanism; the telescopic columns are arranged on the two sides of a vehicle in pairs taking the central axis of the vehicle as the symmetry axis and located between front and rear wheels of the vehicle; the telescopic columns are rigidly connected to the bottom surface of the vehicle; the crank-shaped wheel legs are arranged at the telescopic ends of the telescopic columns in a sleeving manner; the crank-shaped wheel legs are rotationally connected with the telescopic ends of the telescopic columns; the wheel shaft is fixedly connected with the crank-shaped wheel leg, the auxiliary small wheel is rotatably connected with the wheel shaft, the rotating axis of the crank-shaped wheel legs is in the vertical direction, the rotating axis of the auxiliary small wheel is in thehorizontal direction, the braking mechanism is used for braking the auxiliary small wheel, and the rotating angle of the crank-shaped wheel leg is smaller than the maximum steering angle of the frontwheels of the vehicle. The invention further discloses a control method of the passenger vehicle emergency braking multifunctional auxiliary wheel mechanism, braking friction can be increased or support can be provided, and braking side slipping and vehicle overturning are reduced.

Description

technical field [0001] The invention relates to a braking auxiliary wheel mechanism and a control method thereof, in particular to a passenger car emergency braking multifunctional auxiliary wheel mechanism and a control method thereof. Background technique [0002] Safety and energy saving are the eternal themes of the development of the automobile industry. With the improvement of people's living standards, both car manufacturers and car owners have put forward higher and higher requirements for the active safety of cars. At present, passenger cars basically adopt four-wheel braking, and the braking distance is often too long due to insufficient ground adhesion, causing traffic accidents. Sometimes when a passenger car is driving on a difficult road, one or more wheels will fall into a pothole or hang in the air, causing the car body to overturn. Sometimes the car body will suddenly lose balance due to tire damage and blowout during driving. Contents of the invention ...

AI Technical Summary

Problems solved by technology

At present, passenger cars basically use four-wheel brakes, and the braking distance is often too long due to insufficient ground adhesion, causing traffic accidents

Sometimes when a passenger car is driving on a difficult road, one or more wheels will fall into a pothole or hang in the air, causing the body to overturn

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