The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2000
Filed:
Dec. 07, 1998
Applicant:
Inventors:
Assignee:
Aisin AW Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
477 93 ;
Abstract
A control system for an automatic transmission including a hydraulic power transmission, a clutch, and a brake which is engaged to prevent a vehicle from rolling backward thereby establishing a hill-hold state in the speed change unit. The control system includes a stop state detector which detects the vehicle stopped state when the forward driving range is selected, the accelerator pedal is released and the brake pedal is depressed. The control system further includes a clutch disengaging system which provides a neutral control, and a brake engaging system which provides a hill-hold control and performs a neutral control with the engine not under a load.