Vehicle active safe driving steering system

Abstract

The invention discloses a vehicle active safe driving steering system. The vehicle active safe driving steering system includes a pump mechanism, a first proportional reversing valve, a first steeringmechanism, a second steering mechanism and a steering oil cylinder, the first proportional reversing valve is provided with an oil inlet P, oil outlets CF and EF and a control oil port Ls, the oil outlets CF and EF are respectively connected with the first steering mechanism and the second steering mechanism, and the oil outlet CF is connected with the control oil port Ls; the first steering mechanism is provided with an oil inlet P1, an oil returning port T1 and working oil ports R1 and L1, the oil inlet P1 is connected with the oil outlet CF, the oil returning port T1 is connected to an oiltank and the control oil port Ls, and the working oil ports R1 and L1 are connected with the steering oil cylinder; and the second steering mechanism is provided with an oil inlet P2, an oil returning port T2 and working oil ports R2 and L2, the oil inlet P2 is connected with the oil outlet EF, the oil returning port T2 is connected with the oil tank, and the working oil ports R2 and L2 are connected with the steering oil cylinder. According to the vehicle active safe driving steering system, according to the real-time operating condition, the output flow of a pump can be adjusted, three setsof the steering mechanisms are arranged and freely switched to protect one another, and safety and stability are guaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicle engineering, in particular to a vehicle active safety driving steering system. Background technique [0002] Unmanned vehicles are one of the important development directions of the automotive industry in the future, and have attracted much attention in the field of vehicle technology in recent years. Unmanned vehicles integrate visual perception, artificial intelligence, planning control and other multidisciplinary technologies. It not only has important application value in dangerous tasks such as search and rescue, rescue, reconnaissance, etc. It has great practical significance and development potential. At present, many countries in the world are vigorously researching unmanned driving technology, which has greatly promoted the development of unmanned driving technology. [0003] The steering of the vehicle is generally completed by sucking oil from the fuel tank through the steering pump, ...

AI Technical Summary

Problems solved by technology

[0005] 1. The power of the steering pump cannot be adjusted according to the real-time working conditions of the steering cylinder, resulting in excess flow entering the interior of the steering gear, resulting in flow loss, which does not meet the requirements for energy saving and emission reduction;

[0006] 2. Only a single steering mechanism is used to control the steering gear, and there is no emergency backup steering mechanism. When the steering mechanism fails, the backup mechanism cannot be used to ensure the normal driving of the vehicle, and the safety and stability are not high;

[0007] 3. The unmanned driving system cannot quickly switch between manual driving and automatic driving, and cannot guarantee the priority of manual driving

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