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

Control device for electric controlled automatic shift for vehicle variator

An automobile transmission and automatic gear shifting technology, which is applied to the transmission device, transmission device control, gear transmission device, etc., can solve the problems that the working performance is greatly affected by temperature changes, the volume of the motor and the reduction mechanism is large, and the power performance of the vehicle is reduced. Achieve the effects of shortening the shifting process time, strong adaptability and versatility, and improving power

Inactive Publication Date: 2007-02-28
CHONGQING UNIV
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the electronically controlled hydraulic actuator has the advantages of fast response speed and high control precision, but it needs to be driven by a hydraulic power source, which has complex system structure, high cost, high installation and maintenance requirements, work performance is greatly affected by temperature changes, and hydraulic oil leakage pollutes the environment, etc. shortcoming
The electronically controlled electric actuator is usually composed of a DC motor and a deceleration mechanism, which is directly driven by the power supply on the vehicle without a separate power source. It has the advantages of simple control, low cost, and convenient installation and maintenance. However, the electronically controlled electric actuator Motors and deceleration mechanisms are often bulky and inconvenient to arrange on the transmission, which brings difficulties to change manual transmission vehicles, especially cars with small space, into electronically controlled mechanical automatic transmissions
In addition, the shifting mechanism of the current electronically controlled mechanical automatic transmission usually uses two sets of gear selection and gear shifting mechanisms to realize the gear shifting operation. Changing from one gear to another generally needs to complete the three processes of back gear, gear selection, and gear shifting in sequence. The shifting process takes a long time, and the power interruption for a long time leads to a reduction in vehicle dynamics

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
  • Control device for electric controlled automatic shift for vehicle variator
  • Control device for electric controlled automatic shift for vehicle variator
  • Control device for electric controlled automatic shift for vehicle variator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: The screw nut is used as the deceleration mechanism (Fig. 2), the motor shaft 9 is a screw rod, the deceleration mechanism housing 13 is a cylinder with a flange at one end, and a radial threaded hole for installing a limit screw 10 in the middle , a cylindrical sliding nut 11 is installed in the housing 13, the right end of the inner hole of the sliding nut has a thread matched with the screw rod of the motor shaft 9, an axial limit groove is opened on the outer cylindrical surface, and a push-pull flexible shaft 5 is connected to the left end. The internal thread of the inner core, the outer cylindrical surface of the sliding nut and the inner hole of the housing 13 are clearance fit, the sliding nut 11 can move axially in the housing 13 but cannot rotate under the drive of the motor 14 and the limitation of the limit screw 10 . The end cap 15 is a disc with threaded holes, and is fixed on the left end of the housing 13 through the elastic retaining ring...

Embodiment 2

[0014] Embodiment 2: Adopt worm gear as deceleration mechanism (Fig. 3, Fig. 4), worm gear deceleration mechanism housing 21 has connecting flange, connects it with fixed bracket 2 and motor 1 by screw 3, and is installed in engine compartment Inside or on the vacancy of the vehicle frame, the fan-shaped worm gear is installed on the worm gear shaft fixed between the housing 21 and the cover plate 24, and can rotate around the worm gear shaft. The worm gear is fixed with a flexible shaft hinge pin 23, and the motor output shaft 9 is a The worm meshed with the worm gear 19, the right end of the inner core of the push-pull flexible shaft 5 is an earring, installed on the hinge pin 23 of the flexible shaft and positioned with the elastic retaining ring 22, the shell of the push-pull flexible shaft 5 is installed on the threaded hole of the housing 21 and locked with a nut 16 . The motor can rotate forward and reverse under the drive of the electronic control unit, and the wor...

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 relates to an electric control automatic shift controller of vehicle speed changer, especially an electric control shift executor of electric control mechanical automatic speed changer or dual-clutch automatic speed changer, wherein said device is driven by motor, which can be mounted on the space of vehicle engine chamber or frame; via the screw nut device or worm device, the rotation of motor can be converted into axial motion or worm swing of sliding nut; via pushing soft axle to drive the dial axle and shift dial fork, the shift hold and shift back can be completed; three same executors and detectors can independently drive three dial fork axles of speed changer; the hall linear element detects the shift signal, to realize automatic shift control of speed changer. Since the invention can eliminate shift selection, it can reduce the shift time, reduce the power loss, and improve the acceleration property. The invention has simple structure, with reliable control and wide application.

Description

Technical field: [0001] The invention relates to an electronically controlled automatic gearshift control device for an automobile transmission, in particular to an electric gearshift actuator for an electronically controlled mechanical automatic transmission or a dual-clutch automatic transmission. Background technique: [0002] At present, the shift actuators of electronically controlled mechanical automatic transmissions mainly adopt two driving modes: electronically controlled hydraulic and electronically controlled electric. Among them, the electronically controlled hydraulic actuator has the advantages of fast response speed and high control precision, but it needs to be driven by a hydraulic power source, which has complex system structure, high cost, high installation and maintenance requirements, work performance is greatly affected by temperature changes, and hydraulic oil leakage pollutes the environment, etc. shortcoming. The electronically controlled electric a...

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
IPC IPC(8): F16H63/02F16H25/20F16H1/16
Inventor 刘振军秦大同叶明刘晓东
Owner CHONGQING UNIV
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