Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ETHANOL FLEXIBLE FUEL AUTOMOBILE GEAR-SHIFTING PROMPTING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/074311
Kind Code:
A1
Abstract:
An ethanol flexible fuel automobile gear-shifting prompting method, comprising the following steps: (1) determining a speed ratio i from a ratio of a gearbox output shaft rotation speed n out and an engine rotation speed N; (2) comparing the speed ratio i with speed ratio of respective gears in the gearbox to determine the gear of the vehicle; (3) determining a fitting coefficient according to the gear in step (2), and combining the same with a current fuel concentration a% to fit a gear shift vehicle speed according to the current fuel concentration a% and the current gear; and (4) when the vehicle speed reaches the gear shift vehicle speed of step (3), prompting to shift a gear of the vehicle. The gear-shifting prompting method performs fitting to achieve the most economic gear-shifting rule according to an ethanol/gasoline concentration, thus enabling the vehicle to always prompt the driver to shift gear in an economic gear-shifting zone, and improving vehicle fuel economy.

Inventors:
HU FUJIAN (CN)
HU JUNYONG (CN)
LI CAIBAO (CN)
LI JIE (CN)
Application Number:
CN2014/093927
Publication Date:
May 19, 2016
Filing Date:
December 16, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ANHUI JIANGHUAI AUTOMOBILE CO (CN)
International Classes:
F16H59/70; F16H59/72; F16H63/42
Foreign References:
CN102182822A2011-09-14
CN101842569A2010-09-22
US6833362B22004-12-21
JP2010132148A2010-06-17
CN101985976A2011-03-16
CN101003274A2007-07-25
Attorney, Agent or Firm:
PACIFIC CHINA PATENT AGENT CO., LTD. (CN)
北京维澳专利代理有限公司 (CN)
Download PDF: