Steering control system and method for hinged steering distributed electric drive loader

A technology of steering control and electric drive, which is applied to steering mechanisms, steering mechanisms of front and rear tandem vehicles, electric vehicles, etc. It can solve the problems of poor mobility and stability, tire wear, high energy consumption of steering, etc., to reduce the stress and tire wear, fast response, and improved steering and passing capabilities

Active Publication Date: 2021-07-23
JIANGSU ADVANCED CONSTR MASCH INNOVATION CENT LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the deficiencies of the prior art, the object of the present invention is to provide a steering control system and method for an articulated steering distributed electric d

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  • Steering control system and method for hinged steering distributed electric drive loader
  • Steering control system and method for hinged steering distributed electric drive loader
  • Steering control system and method for hinged steering distributed electric drive loader

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Embodiment Construction

[0075] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0076] This embodiment relates to a steering control system for an articulated steering distributed electric drive loader, such as figure 1 , figure 2 As shown, it includes electric drive wheel set, hydraulic articulated steering system, front frame 2, front frame inertia sensor 3, angle sensor 4, hinge pin 9, rear frame inertia sensor 10, rear frame 11, speed pedal, Steering handle, vehicle controller. Wherein, the front frame 2 and the rear frame 11 are connected by a hinge pin 9; the electric drive wheel set includes a right front electric drive wheel 1, a right rear electric drive wheel 6, a left front electric drive wheel 7, and a left rear electric drive wheel 12; The articulated steer...

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Abstract

The invention discloses a steering control method for a hinged steering distributed electrically-driven loader, and the method comprises a steady state mode and a transient state mode; the steady state mode comprises the steps: calculating steady state target wheel speeds of four wheels according to the current vehicle speed and a vehicle frame rotation angle, and calculating to obtain output torques of all driving wheels through closed-loop control of the steady state target wheel speeds and feedback wheel speeds; the transient mode comprises the steps: calculating the expected steering angular velocity increment of a front frame and a rear frame according to the change rate of the opening degree of a steering handle, and obtaining the output torque of each driving wheel through closed-loop control over the transient target wheel speed and the feedback wheel speed. The invention further relates to a hinged steering distributed electric drive loader steering control system. The hinged steering distributed electric drive loader steering control system comprises an electric drive wheel set, a hydraulic hinged steering system, a front frame, a steering angle sensor, a hinged pin shaft, a rear frame, a speed pedal, a steering handle and a whole vehicle controller. The problems that in the steering process in the prior art, maneuverability and stability are poor, steering energy consumption is high, and tire abrasion is serious are solved.

Description

technical field [0001] The invention relates to a steering control system and method for an articulated steering distributed electric drive loader, belonging to the technical field of engineering machinery. Background technique [0002] With the increasing shortage of petroleum resources and the deterioration of environmental pollution, in order to realize the sustainable development of human beings, the requirements for energy saving and environmental protection of construction machinery are getting higher and higher. Electrification can not only solve the problem of energy saving and emission reduction, but also drive a leap in technological development, which is an inevitable trend of social development. As far as the loader is concerned, the application of electric transmission technology can cancel the traditional hydraulic torque converter and improve the transmission efficiency of the whole machine; The application of bus technology provides the basis for the develop...

Claims

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Application Information

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IPC IPC(8): B62D12/00
CPCB62D12/00Y02T10/72
Inventor 李怀义徐晓萌姚亚敏
Owner JIANGSU ADVANCED CONSTR MASCH INNOVATION CENT LTD
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