Hybrid vehicle, and shifting control method and system thereof

A hybrid vehicle and control method technology, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve the problems of reduced clutch life, long duration, weak power, etc., so as to shorten the shift time, extend the Service life, the effect of improving the driving experience

Active Publication Date: 2019-04-05
BYD CO LTD
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the shifting process of the transmission, the engine speed must rise or fall to reach the speed corresponding to the target gear. This process is generally realized through the interaction between the clutch and the engine. The duration i

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
  • Hybrid vehicle, and shifting control method and system thereof
  • Hybrid vehicle, and shifting control method and system thereof
  • Hybrid vehicle, and shifting control method and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0027] In an embodiment of the present invention, such as figure 1 As shown, the hybrid vehicle may include an engine 1, a power motor 2, a power battery 3, and an auxiliary motor 4 connected to the engine 1, wherein the power motor 2 and the auxiliary motor 4 are both connected to the power battery 3. Further, as figure 2 As shown, the hybrid vehicle may also include a DC-DC converter 5 and a transmission 6, wherein the engine 1 outputs power to the wheels of the hybrid vehicle through the clutch and...

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 hybrid vehicle, and a shifting control method and system thereof. The hybrid vehicle includes an engine, a power motor, a power battery, a transmission and an auxiliary motorconnected to the engine; The shifting control method includes the following steps: obtaining the speed of the hybrid vehicle through a transmission control unit when the engine is operated, and obtaining the rotating speed of the engine through an engine control unit; judging whether an assisting shifting condition is met according to the speed of the hybrid vehicle and the rotating speed of theengine; and generating, by a whole vehicle control unit, an assisting shifting instruction if the assisting shifting condition is met, and sending the assisting shifting instruction to an auxiliary motor control unit so as to control the auxiliary motor to output torque to the engine and accelerate the gear switching of the transmission. According to the shifting control method, the shifting timeof the hybrid vehicle can be effectively shortened, the driving experience of users can be enhanced, and the service life of a clutch can be prolonged.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to a hybrid electric vehicle shift control method, a non-transitory computer-readable storage medium, a hybrid electric vehicle shift control system and a hybrid electric vehicle. Background technique [0002] During the shifting process of the transmission, the engine speed must rise or fall to reach the speed corresponding to the target gear. This process is generally realized through the interaction between the clutch and the engine. The duration is relatively long, and the user will generally feel it clearly. Momentum weakens. Moreover, during the gear shifting process, the friction work of the clutch is relatively large, thereby accelerating the wear of the clutch and reducing the service life of the clutch. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a c...

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): B60W30/19B60W10/06B60W10/08B60W10/11
CPCB60W10/06B60W10/08B60W10/11B60W20/30B60W30/19B60W2510/0638B60W2520/10B60W2710/0644B60W2710/1005B60W10/10
Inventor 王春生许伯良罗永官赵梅君刘学礼
Owner BYD CO LTD
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