Shaft type electric power steering device and motor vehicle
An electric power steering, shaft-type technology, which is applied in the direction of electric steering mechanism, power steering mechanism, steering mechanism, etc., can solve the problems of complex assembly process, unfavorable layout, lower manufacturing cost, large layout space, etc., and achieve small layout space requirements , Reduce manufacturing costs and prolong service life
Inactive Publication Date: 2021-04-06
DONGFENG MOTOR CORP HUBEI
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Problems solved by technology
[0003] At present, the electric power steering device is driven by arranging a pinion shaft on both sides of the power-assisted end of the rack, but this structure requires a large layout space, and the assembly process is complicated, which is not conducive to the layout in a limited space to reduce the Manufacturing cost
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[0030] The present invention will be described in detail below in conjunction with specific embodiments and examples, and the advantages and various effects of the present invention will be presented more clearly. Those skilled in the art should understand that these specific implementations and examples are used to illustrate the present invention, not to limit the present invention.
[0031] Throughout the specification, unless otherwise specified, terms used herein should be understood as commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, this specification shall take precedence.
[0032] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.
[0033] It s...
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The invention provides a shaft type electric power steering device and a motor vehicle, the shaft type electric power steering device comprises a first pinion shaft, a rack, a second pinion shaft, a third pinion shaft and an electric assembly provided with a controller, one end of the first pinion shaft is used for being connected with a steering wheel in an anti-torque mode, and the electric assembly is provided with a controller; a first tooth section is arranged at the first end of the rack; a second tooth section is arranged at the second end of the rack, the first tooth section and the second tooth section are located on the two sides of the rack respectively, the first tooth section is meshed with the other end of the first pinion shaft, the third tooth section of the second pinion shaft is meshed with the second tooth section, and the fourth tooth section of the third pinion shaft is meshed with the second tooth section; the third pinion shaft is in synchronous transmission connection with the second pinion shaft, the output end of the electric assembly is in transmission connection with the second pinion shaft, and the controller is connected with the torque sensor. The steering device provided by the invention has low requirements on arrangement space; and the tensile strength and the bending strength of the rack are improved, and the service life of the rack is prolonged.
Description
technical field [0001] The invention belongs to the technical field of motor vehicle steering devices, and in particular relates to a shaft type electric power steering device and a motor vehicle. Background technique [0002] The electric power steering device is a power steering device that relies on the motor to provide auxiliary torque. The steering shaft (pinion shaft) is equipped with a torque sensor. The relative rotation angle displacement generated by the torque sensor becomes a signal and is transmitted to the controller. The controller controls the rotation direction of the motor and the magnitude of the assist current according to the signal of the torque sensor, and sends the control command to the motor to drive the motor to rotate, and the motor will output Torque is transmitted to the rack, which pushes the steering rod connected to the rack to provide steering assist for steering. [0003] At present, the electric power steering device is driven by arrangin...
Claims
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Login to View More IPC IPC(8): B62D5/04B62D3/12
CPCB62D5/0442B62D3/12
Inventor 李世生邢丽华詹卫炜蔡任远刘琦
Owner DONGFENG MOTOR CORP HUBEI