Invention Grant
- Patent Title: Method and apparatus for downshifting an automatic vehicle transmission
-
Application No.: US14912301Application Date: 2014-08-07
-
Publication No.: US10024424B2Publication Date: 2018-07-17
- Inventor: Andi Lowndes , Emil Sahlberg
- Applicant: JAGUAR LAND ROVER LIMITED
- Applicant Address: GB Whitley, Coventry
- Assignee: JAGUAR LAND ROVER LIMITED
- Current Assignee: JAGUAR LAND ROVER LIMITED
- Current Assignee Address: GB Whitley, Coventry
- Agency: Carlson, Gaskey & Olds
- Priority: GB1314817.6 20130819
- International Application: PCT/EP2014/067039 WO 20140807
- International Announcement: WO2015/024792 WO 20150226
- Main IPC: F16H61/04
- IPC: F16H61/04 ; F16H61/16

Abstract:
A multi-speed automatic vehicle transmission has an electronic control unit which permits multiple downshifts if certain conditions are satisfied. Such downshifts are direct and omit engagement and disengagement of one or more intermediate speed ratios. Multiple downshifting may allow the actual speed ratio to better match the ideal speed ratio, for example under heavy braking.
Public/Granted literature
- US20160201797A1 METHOD AND APPARATUS FOR DOWNSHIFTING AN AUTOMATIC VEHICLE TRANSMISSION Public/Granted day:2016-07-14
Information query