A variable transmission ratio optimization method for an intelligent steer-by-wire system
A technology of variable transmission ratio and steering system, which is applied in the direction of steering mechanism, steering rod, electric steering mechanism, etc., can solve the problems of reducing the driver's burden and ride comfort, and achieve the effect of broad market application prospects
Active Publication Date: 2021-11-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, in the prior art, the design of the variable transmission ratio of the steer-by-wire system is mainly to design the transmission ratio based on the constant gain of the fixed yaw rate, and the range of the gain value of the yaw rate is generally between 0.1 and 0.5. The gain value of pendulum angular velocity mainly depends on experience to select a fixed value, which has great randomness
Moreover, the steering-by-wire variable transmission ratio law designed with a fixed yaw rate gain value cannot reduce the burden on the driver to the greatest extent and improve the ride comfort of the occupants.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0060] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0061] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
[0062] Such as figure 1 As shown, the present invention discloses an intelligent steer-by-wire system, which includes a steering wheel module, a road sense feedback module, a steering execution module, a sensor module and an ECU control module;
[0063] The steering wheel module includes a steering wheel and a steering column; the upper end of the steering column is fixedly connected to the steering wheel;
[0064] The road sense feedback module includes a road sense motor and a road...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a variable transmission ratio optimization method of an intelligent steering-by-wire system, wherein the steering-by-wire system includes a steering wheel module, a road feeling feedback module, a steering execution module, a sensor module and an ECU control module. And a variable transmission ratio optimization method for the steer-by-wire system is proposed, so that the steering system can adjust the yaw rate gain according to the vehicle speed and calculate the corresponding optimal transmission ratio. Thereby, the maneuverability of the vehicle can be effectively improved and the driving burden of the driver can be reduced.
Description
technical field [0001] The invention relates to the technical field of steering-by-wire systems, in particular to a variable transmission ratio optimization method for an intelligent steering-by-wire system. Background technique [0002] The steer-by-wire system is a new generation of steering system. Because the mechanical connection between the steering wheel and the steering wheel is canceled, the steering transmission ratio can be designed arbitrarily, so that the steering stability and ride comfort of the car have been effectively improved. [0003] However, in the prior art, the design of the variable transmission ratio of the steer-by-wire system is mainly to design the transmission ratio based on the constant gain of the yaw rate, and the range of the gain value of the yaw rate is generally between 0.1 and 0.5. The gain value of the pendulum angular velocity mainly relies on experience to select a fixed value, which has great randomness. Moreover, the steering-by-wi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/04B62D6/00B62D101/00B62D113/00B62D137/00
CPCB62D5/046B62D6/001
Inventor 赵万忠邹松春黄云丰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS