Electric steering-by-wire system

A steering system and electric wire technology, applied in the direction of automatic steering control components, steering mechanisms, steering rods, etc., can solve the problem of hydraulic valves and oils with complex structure of the steering system, high operating noise, and steering performance that is easily affected by ambient temperature and pollution. The impact of the medium and other issues, to achieve the effect of simple maintenance, low operating noise, and convenient overall layout

Active Publication Date: 2018-12-07
SPECIAL VEHICLE TECH CENT OF HUBEI AEROSPACE TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an electric steer-by-wire system, which is applied to super-heavy off-road vehicles to solve the problem of the complex structure of the steering system in the prior art, and the steering performance of the traditional chassis is easily affected by the ambient temperature, easily polluted hydraulic valves and The influence of oil medium and the technical problems of high operating noise have achieved simple structure and compact mechanism, which is convenient for the overall layout of the vehicle. The steering performance will not be affected by ambient temperature, easily polluted hydraulic valves and oil medium, and the operating noise is low. Easy installation and debugging, simple maintenance technical effect

Method used

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Examples

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Embodiment 1

[0030] This embodiment provides an electric steering-by-wire system, which is applied to super-heavy off-road vehicles. Please refer to figure 1 , the steering system includes:

[0031] steering switch 1;

[0032] A vehicle controller 2, the vehicle controller 2 is communicatively connected to the steering switch 1, and the vehicle controller 2 receives and sends a vehicle speed signal and a signal that the steering switch 1 is turned on;

[0033] Specifically, the vehicle controller 2 is connected in communication with the steering switch 1, and the vehicle controller 2 receives the vehicle speed signal and the signal that the steering switch 1 is turned on, and further converts the above two signals to sent to the gateway 3.

[0034] A gateway 3, the gateway 3 receiving the vehicle speed signal sent by the vehicle controller 2 and the signal that the steering switch 1 is turned on;

[0035] Specifically, after the vehicle controller 2 receives the vehicle speed signal of ...

Embodiment 2

[0060] The working principle of an electric steering-by-wire system provided in this embodiment is described in detail below, specifically as follows:

[0061] After the program starts, the system is initialized; the vehicle speed signal is judged. If the vehicle speed exceeds the set value, the rear group alignment program is executed; if the vehicle speed does not exceed the set value, the steering program is executed; Value, read the corner value of the front group, calculate the theoretical elongation of the rear group, read the current elongation of the rear group, execute the control algorithm, and send the target elongation of the rear group, this process is a cyclic execution process; when the rear group When the target elongation is consistent with the theoretical elongation of the rear group, the steering program is executed and the program ends. Specifically, the vehicle controller 2 receives the vehicle speed signal and the signal that the rear steering switch is t...

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Abstract

The invention discloses an electric steering-by-wire system. The electric steering-by-wire system is applied to an extra-heavy type off-road vehicle. The electric steering-by-wire system comprises a steering switch, a vehicle control unit, a gateway, an angle sensor, a steering controller, M electric cylinder controllers, N electric cylinders, a processor and a motor steering module. The vehicle controller is connected with the steering switch in a communicating mode, and the vehicle control unit receives and transmits a speed signal and a signal that the steering switch is switched on. The gateway receives the speed signal and the signal that the steering switch is switched on sent by the vehicle control unit. The angle sensor obtains an angle value and a rotation direction of a steeringwheel. The steering controller is connected with the angle sensor and the gateway separately in a communicating mode. The electric steering module drives wheels to steer through the control by the N electric cylinders. The electric steering-by-wire system achieves the technical effects of simple structure, compact mechanism, convenient overall arrangement of a vehicle, low running noise, convenient installation and debugging, and simple maintenance.

Description

technical field [0001] The invention relates to the technical field of special vehicle engineering, in particular to an electric steering-by-wire steering system. Background technique [0002] The existing electric steering system has the following forms: C-EPS system, S-EPS system, P-EPS system, kingpin motor steering system, among them, the C-EPS system consists of a controller (ECU), a torque (angle) sensor , DC motor (with electromagnetic separator), deceleration device, steering transmission shaft and mechanical steering gear, it is suitable for miniature and light vehicles; S-EPS system consists of torque sensor, power motor, deceleration device, circulating ball mechanical steering gear An integrated recirculating ball electric steering gear, the system is suitable for pickup trucks, light trucks, 9-21-seater vans (vans); P-EPS system consists of torque sensor, power-assisted motor, reduction device, and rack-and-pinion mechanical steering gear An integrated electric...

Claims

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Application Information

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IPC IPC(8): B62D5/10B62D6/00B62D5/18B62D113/00B62D101/00
CPCB62D5/10B62D5/18B62D6/00
Inventor 虞汉中谷洵陈小学侯月明冯炜
Owner SPECIAL VEHICLE TECH CENT OF HUBEI AEROSPACE TECH RES INST
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