Differential cooperative steering system and control method for articulated steering vehicle with single-axis independent drive

An independent drive and steering system technology, applied to vehicle components, steering mechanisms, fluid steering mechanisms, etc., can solve the problems of increasing vehicle reactive power loss, increasing vehicle drive power consumption, reducing vehicle speed, etc., to reduce energy consumption, reduce Effects of energy consumption and reduced turning time
CN108674484BActive Publication Date: 2019-07-30JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JILIN UNIV
Publication Date
2019-07-30

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Abstract

The invention discloses a differential coordinated steering system of a hinged steering vehicle independently driven by a single axle. The differential coordinated steering system is matched with an original hydraulic steering system of the hinged steering vehicle to effectively improve steering flexibility of the hinged steering vehicle and lower steering energy consumption. The invention furtherdiscloses a control method of the differential coordinated steering system of the hinged steering vehicle independently driven by the single axle. A proportional controller is used for calculating proper differential torque according to the angular speed of a steering wheel, and the differential torque is applied to driving wheels on the left and right sides of a driving axle, so that the torqueof the driving wheel on one side is increased while the torque of the driving wheel on the other side is reduced, and a direct yawing moment is formed and coordinately acts with the hydraulic steeringsystem to achieve vehicle steering; and the purposes of shortening steering time and lowering energy consumption of the hydraulic steering system are achieved.
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Description

technical field

[0001] The invention relates to the technical field of vehicle steering, in particular to a single-axis independently driven articulated steering vehicle differential cooperative steering system and a control method thereof. Background technique

[0002] Construction vehicles have been hydraulically powered for decades. Compared with the traditional mechanical drive method, the hydraulic drive system is easy to realize stepless speed regulation and overload protection; it can simplify the transmission system and save layout space; it is easy to operate, and it is convenient to form an electro-hydraulic composite system with the electrical control system to realize automation. Especially with the development of hydraulic technology and the improvement of hydraulic component materials, hydraulic drive systems are more and more widely used in engineering vehicles.

[0003] At the same time, with the increasingly severe global environmental problems and the depl...

Claims

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