Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Passenger car active steering system based on energy accumulator and steering controlling method for passenger car active steering system

A technology of active steering and accumulator, applied in the direction of fluid steering mechanism, etc., can solve the problems of small adjustable range, inflexible changes, small output torque, etc.

Active Publication Date: 2018-01-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the purely mechanical variable transmission ratio is that the adjustable range is small and the change is not flexible enough; while the output torque of the electronically controlled mechanical variable transmission ratio is small, which is not suitable for application on heavy vehicles
[0004] The Chinese invention patent application number is CN201610989595.7, and the name is "a hybrid front wheel active steering system". The hybrid transmission unit proposed can control the torque and the angle of rotation, but the structure adopts the motor assist mode, and the power is relatively small. Cannot be used on passenger cars

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Passenger car active steering system based on energy accumulator and steering controlling method for passenger car active steering system
  • Passenger car active steering system based on energy accumulator and steering controlling method for passenger car active steering system
  • Passenger car active steering system based on energy accumulator and steering controlling method for passenger car active steering system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0063] refer to figure 1 , figure 2 As shown, an accumulator-based passenger car active steering system of the present invention includes: a mechanical module, a hydraulic module and an electronic control module;

[0064] The mechanical module includes a steering wheel 1, a steering shaft 4, a recirculating ball steering gear 40, a steering rocker arm 12, a steering straight rod 41, a steering trapezoid 20, and wheels 21 connected in sequence;

[0065] The recirculating ball diverter 40 includes a recirculating ball diverter housing 10, a steering nut 9, a steering screw 8, and a gear fan 11; the recirculating ball diverter housing 10 is respectively provided with an oil inlet and an oil o...

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

No PUM Login to View More

Abstract

The invention discloses a passenger car active steering system based on an energy accumulator and a steering controlling method for the passenger car active steering system. The passenger car active steering system comprises a mechanical module, a hydraulic module and an electric-controlled module; a motor and a hydraulic pump are adopted by the hydraulic module to supply oil to two hydraulic circuits, the first hydraulic circuit adopts the direct oil supplying mode to realize adjusting of steering moment, the second hydraulic circuit adopts the mode of energy accumulator oil supplying to realize adjusting of the steering angle, and the two hydraulic circuits are coordinated and cooperated to finish the active steering function. According to the passenger car active steering system, the energy accumulator serves as an auxiliary power source of the second hydraulic circuit, the weight of the system is reduced, and meanwhile, energy waste caused by adopting multiple hydraulic pumps is avoided.

Description

technical field [0001] The invention belongs to the technical field of automobile power steering system control, and specifically refers to an accumulator-based passenger car active steering system and a steering control method thereof. Background technique [0002] With the increasing requirements of automobiles for safety and energy saving, automobile steering systems are also undergoing constant changes. Traditional mechanical steering systems and hydraulic power steering systems can no longer meet the needs of today's society. Electronically controlled hydraulic power steering systems, electric power steering systems, active steering systems and steer-by-wire systems have gradually developed and been applied. Among them, the active steering system and the steer-by-wire system can freely change the angular transmission ratio to overcome the contradiction between "lightness" and "smartness" of the steering system, and have the best controllability and safety performance, w...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/24B62D5/065B62D5/07B62D5/06
Inventor 赵万忠周小川徐灿赵宏宇张子俊王春燕
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com