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)
HU JUNYONG (CN)
LI CAIBAO (CN)
LI JIE (CN)
Application Number:
PCT/CN2014/093927
Publication Date:
May 19, 2016
Filing Date:
December 16, 2014
Export Citation:
Assignee:
ANHUI JIANGHUAI AUTOMOBILE CO (CN)
International Classes:
F16H59/70; F16H59/72; F16H63/42
Foreign References:
| CN102182822A | 2011-09-14 | |||
| CN101842569A | 2010-09-22 | |||
| US6833362B2 | 2004-12-21 | |||
| JP2010132148A | 2010-06-17 | |||
| CN101985976A | 2011-03-16 | |||
| CN101003274A | 2007-07-25 |
Attorney, Agent or Firm:
PACIFIC CHINA PATENT AGENT CO., LTD. (CN)
北京维澳专利代理有限公司 (CN)
北京维澳专利代理有限公司 (CN)
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