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Double-motor electric power steering system and steering method based on electromagnetic clutch

An electric power steering, electromagnetic clutch technology, applied in electric steering mechanism, automatic steering control components, steering gear, etc., can solve the problems of inability to meet the needs of commercial vehicles, small output torque of the electric power steering system, etc., to improve fuel economy. performance, reduce operating costs, and reduce transportation costs

Inactive Publication Date: 2019-01-15
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a dual-motor electric power steering system and steering method based on electromagnetic clutches to solve the problem that the output torque of the electric power steering system is too small to meet the requirements of commercial vehicles. demand problem

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  • Double-motor electric power steering system and steering method based on electromagnetic clutch
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  • Double-motor electric power steering system and steering method based on electromagnetic clutch

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Embodiment Construction

[0034] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", "end", "side" etc. is based on the Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicit...

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Abstract

The invention discloses a double-motor electric power steering system and a steering method based on an electromagnetic clutch. A first steering shaft is connected under a steering wheel in the system, and the first steering shaft is connected with a second steering shaft through a universal joint. A steering wheel torque and angle sensor is arranged below the steering wheel for detecting torque and steering wheel angle signals acting on the steering wheel. The main motor and the auxiliary motor are coaxial and connected through a first electromagnetic clutch. The output end of the main motoris connected in parallel with the second steering shaft through a torque coupler. The output of the torque coupler is connected to the steering gear via a third steering shaft. According to the magnitude of the required assisting torque, the main motor and the auxiliary motor are controlled to always each bear half of the assisting current and output the torque together, so as to meet the requirements of the commercial vehicle for larger torque, improve the fuel economy of the commercial vehicle and reduce the transportation cost, by setting two coaxial assisting motors which are connected through the electromagnetic clutch.

Description

technical field [0001] The invention belongs to the technical field of power steering systems, and in particular relates to a dual-motor electric power steering system and a steering method based on an electromagnetic clutch. Background technique [0002] The existing electric power steering system has high safety and reliability, and the steering characteristic curve is relatively ideal. At the same time, due to the use of a DC motor, the engine does not need to provide high-pressure oil, and the fuel economy of the whole vehicle is better. However, limited by the power supply voltage and installation size of the vehicle battery, the output torque of the electric power steering system is small, which cannot meet the steering assistance requirements of commercial vehicles. At present, the application field is still limited to passenger cars and light commercial vehicles. [0003] Therefore, from the perspective of fuel economy, the use of electric power steering system with...

Claims

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Application Information

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IPC IPC(8): B62D5/04B62D6/00B62D3/00B62D101/00
CPCB62D3/00B62D5/04B62D6/00
Inventor 李耀华何杰冯乾隆张洋森南友飞
Owner CHANGAN UNIV
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