Electronic differential steering system of electric sweeper

Abstract

The invention discloses an electronic differential steering system of an electric sweeper, and belongs to the field of automobile steering systems. The electronic differential steering system comprises the sweeper provided with a sweeper pedal, a steering wheel, an instrument desk and wheels, wherein an induction device, a control device, driving devices and a power device are arranged on the sweeper; the induction device and the driving devices are in communication connection with the control device by a CAN (controller area network) trunk; the power device is electrically connected with the driving devices by a direct current bus; the power device is electrically connected with the control device by a direct current bus; an energy converter is arranged on the direct current bus between the power device and the driving devices in an electrical connection manner; and an energy absorber is arranged on a circuit of the direct current bus, and electrically connected with the energy converter. The electronic differential steering system with the structure is flexible to arrange, simple in structure and convenient to use; the efficiency of a transmission system is high; the low-speed controllability and the high-speed smoothness of the sweeper are improved; protection is provided for a whole power supply line; and a whole control system can be overhauled rapidly.

Description

technical field [0001] The invention relates to the field of automobile steering systems, in particular to an electronic differential steering system of an electric sweeper. Background technique [0002] The power from the vehicle power plant is transmitted to the driving wheels by the transmission system. The transmission system has the functions of deceleration, speed change, reversing, interruption of power, differential speed between wheels and differential speed between axles, etc., which can ensure the smooth running of the vehicle under various working conditions. It runs normally and has good power and economy. It is mainly composed of clutches, transmissions, universal joints, transmission shafts and drive axles. [0003] In the daily operation of the sweeping vehicle, the sweeping vehicle often drives on the road in the square of the community, but it often happens that it cannot enter the work due to the small site and the large turning radius, or because of the h...

AI Technical Summary

Problems solved by technology

[0003] In the daily operation of the sweeping vehicle, the sweeping vehicle often drives on the road in the square of the community, but it often happens that it cannot enter the work due to the small site and the large turning radius, or because of the high density of residents in the community, the driver is in the process of turning. Small size, inconvenient steering operation, collision with residents, causing unnecessary disputes

[0004] In the existing technology, the electronic differential control system can realize the inorganic steering of the vehicle and improve the control precision in the process of vehicle steering. As far as the current technical level is concerned, the electronic differential control system is a technical difficulty in vehicle steering. Most of the research on electronic differential control combines the Ackerman model of steering kinematics to coordinate the speed or torque of the four-wheel hub motors, and control the speed separately during steering, but this will reduce the degree of freedom of the vehicle and worsen the handling performance, and it will also reduce the speed and torque of the four-wheel hub motors. degrade the stability of the vehicle

[0005] In the electronic differential steering system, the hub motor and the electronic differential controller are very sensitive to voltage, and often break down due to excessive voltage, which increases the frequency of maintenance, causes inconvenience in use, and increases the cost of use

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