Neutral idle hill detection
AssigneeGeneral Motors Corporation
InventorHerve Scelers
Life of this patent
Estimating the term…
Abstract
A neutral idle hill detection system for a vehicle with an automatic transmission comprises a range selection input device that receives an operating range of a transmission. A throttle position input device receives a throttle position signal. A transmission output speed input device receives a transmission output speed signal. A transmission temperature input device receives a temperature signal. A brake status input device receives a brake signal. A control module receives the range, the throttle position signal, the transmission output speed signal, the temperature signal, and the brake signal, detects a hill condition based on the received signals, and controls a first clutch of the transmission based on the hill condition.
Claims27
A neutral idle hill detection system for a vehicle with an automatic transmission, comprising:
- a range selection input device that receives an operating range of a transmission;
- a throttle position input device that receives a throttle position signal;
- a transmission output speed input device that receives a transmission output speed signal;
- a transmission temperature input device that receives a temperature signal;
- a brake status input device that receives a brake signal;
- and
- a control module that receives said range, said throttle position signal, said transmission output speed signal, said temperature signal, and said brake signal and that detects a hill condition based on said received signals and wherein said control module controls a first clutch of said transmission based on said hill condition.
A method of controlling a clutch of an automatic transmission based on detecting a hill condition, comprising:
- detecting a hill condition;
- incrementing a counter if said hill condition is detected;
- determining a neutral idle condition based on said counter;
- and
- controlling said clutch based on said determined neutral idle condition.
Dependencies are inferred from the claim text.