Enabling control method and device for electro-hydraulic power steering system
A hydraulic power steering and control method technology, which is applied to automatic steering control components, power steering mechanisms, steering mechanisms, etc., can solve problems such as complex control logic, safety hazards, and complex control logic safety hazards, and achieve simple and reliable control logic High performance, avoid the effect of steering motor not working
Inactive Publication Date: 2020-09-01
ZHENGZHOU YUTONG BUS CO LTD
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Problems solved by technology
[0005] The object of the present invention is to provide an enabling control method for an electrohydraulic power steering system to solve the problem of complex control logic and potential safety hazards in the prior art; the present invention also provides an enabling control device for an electrohydraulic power steering system, which is used To solve the problem that the control logic of the enabling control device in the prior art is complex and has potential safety hazards
Method used
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[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0017] The present invention provides an enabling control method and device for an electrohydraulic power steering system, wherein the enabling control steps in the enabling control method are as follows:
[0018] 1) At least detect the vehicle speed signal, parking signal, gear signal and accelerator pedal signal;
[0019] 2) Judging the above signals, if any one of the signals is valid, the steering motor is enabled to work; among them, a valid vehicle speed signal indicates that the vehicle speed is not zero, a valid parking signal indicates that the parking is released, and a valid gear signal indicates that it is in D gear or R gear, the accelerator pedal signal is effective, indicating that the accelerator pedal opening is greater than zero.
[0020] Such as figure 1 As shown, the power supply of the steering motor is provided by the whole vehicle, wh...
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The invention relates to the technical field of steering control, in particular to an enabling control method and device for an electric-hydraulic power steering system. The method at least detects avehicle speed signal, a parking signal, a gear signal and an accelerator pedal signal; all the signals are judged, and if any signal is valid, the steering motor is enabled to work; validity of the vehicle speed signal indicates that the vehicle speed is not zero, validity of the parking signal indicates that parking is released, validity of the gear signal indicates that the vehicle is in a D gear or an R gear, and validity of the accelerator pedal signal indicates that the accelerator pedal opening degree is greater than zero; when any signal is detected to be valid, the steering motor is controlled to work, and thus, enabling control on the electro-hydraulic power steering system is realized; the control logic is simple, when the vehicle speed is zero and steering assistance is needed,gear engagement and accelerator stepping are not needed, steering assistance can be provided as long as any signal exists, the logic complexity is reduced, the misoperation probability is reduced, andthe reliability is high.
Description
technical field [0001] The invention relates to the technical field of steering control, in particular to an enabling control method and device for an electrohydraulic power steering system. Background technique [0002] At present, commercial vehicles basically adopt hydraulic power steering system (EHPS) due to the heavy load of the whole vehicle and the heavy weight of the steering axle. Hydraulic power steering has the following advantages: strong adaptability (adaptable to large and small vehicles), large steering assist, high reliability, smooth and soft steering, and good road feel. Electric commercial vehicles with relatively large loads use EHPS. The steering motor is driven by the corresponding controller and controlled according to the actual vehicle strategy, and the steering is driven according to the requirements to provide hydraulic steering assistance for the whole vehicle. [0003] The EHPS steering motor is controlled by its controller, and most of its con...
Claims
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Login to View More IPC IPC(8): B62D5/06B62D6/00B62D101/00B62D137/00
CPCB62D5/064B62D6/001
Inventor 陈运来韩光辉闫帅林孟天宝
Owner ZHENGZHOU YUTONG BUS CO LTD