An electronically controlled hydraulic power steering device with controllable steering radius of front wheels
A front wheel steering and power steering technology, applied in steering mechanism, steering rod, electric steering mechanism, etc., can solve the problem of inability to meet the turning radius and other problems, and achieve the effect of reducing excessive tire wear and reducing additional resistance.
Active Publication Date: 2015-12-30
YANGZHOU DONGYUAN AUTO PUMP TECH CO LTD
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Problems solved by technology
However, due to the non-stretchability of the tie rods, this steering mechanism still cannot change its own defects to realize that the axes of all wheels intersect at the same point, that is, it cannot meet the ideal turning radius
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Embodiment Construction
[0013] like figure 1 As shown, a power steering device with a controllable steering radius of the front wheels includes a steering wheel 3 and a horizontal straight rod. Shaft 21, the left steering shaft 21 is connected with the left horizontal straight rod 11 by a worm gear mechanism, the left steering shaft 21 is provided with a worm gear, and the left horizontal straight rod 11 is provided with a worm; the right horizontal straight rod 12 Connected with the right steering shaft 22; the right steering shaft 22 is connected with the right horizontal straight rod 12 by a worm gear mechanism, the right steering shaft 22 is provided with a worm gear, and the right lateral straight rod 12 is provided with a worm. The left steering shaft 21 and the right steering shaft 22 are respectively connected with a rotation angle control unit, and the rotation angle control unit is used to control the rotation angles of the left steering shaft 21 and the right steering shaft 22; the rotatio...
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A power steering device with controllable steering radius of the front wheels, comprising a steering wheel, an ECU (Electronic Control Unit), an oil cylinder, a speed reduction mechanism, a tie rod and a control valve, a steering wheel angle sensor, a steering wheel torque sensor, a vehicle speed sensor, and a tie rod displacement sensor , hydraulic master cylinder, etc., the tie rod is divided into left and right parts, the left part of the tie rod is controlled by the steering wheel, valve and deceleration mechanism, the right side tie rod follows the change of the left tie rod, and the oil cylinder is controlled by the valve The stroke realizes the control of the steering radius of the right steering wheel; the present invention mainly solves the problem that the two front wheels cannot be steered according to the ideal left and right wheel steering radius, and the steering device of the present invention can change the steering radius of the left and right front wheels to improve Steering precision.
Description
technical field [0001] The invention relates to a steering device for controlling the steering radius of the front wheels of an automobile, in particular to a power steering device which utilizes electronically controlled hydraulic technology to control the steering radius of the front wheels of an automobile, and is suitable for various ground vehicles The steering assist and the occasion of turning according to the ideal turning radius. Background technique [0002] During the driving process of the car, the driver turns the steering wheel to realize the steering of the vehicle through a set of steering mechanisms, so as to ensure that the car can be turned according to the driver's driving intention. In order to avoid the additional resistance of the road to the driving of the car and the excessive wear of the tires when the car is turning, the steering system is required to ensure that all the wheels are doing pure rolling when the car is turning. Obviously, this is onl...
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IPC IPC(8): B62D7/20B62D5/04
Inventor 刘文光何仁陈峰
Owner YANGZHOU DONGYUAN AUTO PUMP TECH CO LTD