A start-up control method for a hybrid continuously variable transmission

A continuously variable transmission and power control technology, applied in hybrid vehicles, power units, pneumatic power units, etc., can solve the problems of poor starting acceleration performance, small maximum torque, and poor stability of continuously variable transmission, so as to improve the starting performance , Reduce exhaust emissions and reduce fuel consumption

Active Publication Date: 2021-10-12
XIANGTAN UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the acceleration performance of CVT is slightly worse, the maximum torque it can bear is relatively small, and the stability is relatively poor, especially when the vehicle needs a large torque in other complex working conditions such as starting conditions and uphill conditions, the CVT The torque transmitted by the transmission steel belt is relatively limited

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
  • A start-up control method for a hybrid continuously variable transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the hybrid continuously variable transmission starting control device of the present invention includes an engine, a hydraulic torque converter, a forward and reverse gear mechanism, a speed change mechanism, a gear starting mechanism, a speed reduction mechanism and wheels;

[0024] What described speed change mechanism 9 adopted is metal belt type continuously variable transmission. The forward and reverse gear mechanism includes a ring gear 6, a planetary carrier 3, a planetary gear 7 and a sun gear 8; 8 form a planetary gear train. The planetary gear 7 is installed on the planetary carrier 3; the planetary carrier 3 is connected with the output shaft of the hydraulic torque converter, and the input shaft of the hydraulic torque converter is connected with the engine. A reverse brake 5 is provided between the ring gear 6 and the ...

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 starting control device and a control method of a hybrid continuously variable transmission. The device includes a forward and reverse gear mechanism, a gear starting mechanism, a speed reduction mechanism and wheels; the forward and reverse gear mechanism includes a planetary gear system; The input shaft, the planet carrier are connected with the engine, the reverse gear brake is set between the ring gear and the car body, and the forward gear clutch is set between the sun gear and the planet carrier; the gear starting mechanism includes gear Ⅰ, gear Ⅱ and gear Ⅲ meshed in sequence ; Clutch Ⅰ is provided between gear Ⅰ and the planet carrier; Clutch Ⅱ is provided between the rotating shaft of gear Ⅱ and the output shaft of the motor; Clutch Ⅲ is provided between the rotating shaft of gear Ⅲ and the rotating shaft of the generator, and the rotating shaft of gear Ⅲ and the reduction mechanism A clutch IV is arranged between the input shafts of the motor; the generator is connected to the motor and the storage battery through the inverter; the output shaft of the reduction mechanism is connected to the wheels. The invention can provide a larger torque for the vehicle, improve the starting performance of the continuously variable transmission, and make the gear shifting of the vehicle stable.

Description

technical field [0001] The invention relates to a starting control device and a control method of a hybrid continuously variable transmission. Background technique [0002] In traditional vehicles, the continuously variable transmission often only provides driving power through the fuel engine. Although it can provide enough power for the transmission system, it is not environmentally friendly. Electrification and intelligence are the main trends in the development of automobiles today. It is estimated that by 2024, the production and sales of new energy vehicles in the Chinese market will reach 10 million, and the production and sales of smart cars will reach 16 million. With the gradual emergence and development of concepts such as electrification, networking, intelligence, and sharing, the new energy vehicle industry is undergoing tremendous changes. How to create more energy-saving, efficient, and safe travel has become the ultimate goal of the automotive industry's tran...

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 Patents(China)
IPC IPC(8): B60K6/36B60K6/365B60K6/38B60K6/24B60K6/26
CPCB60K6/24B60K6/26B60K6/36B60K6/365B60K6/38Y02T10/62
Inventor 刘金刚郑剑云傅兵许杨朱泰平
Owner XIANGTAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap