Shift controls for automated shifting manual transmissions with

Details Shift controls for automated shifting manual transmissions with Shift controls for automated shifting manual transmissions with

1998-08-17

2000-05-02

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Means detecting or ameliorating the effects of malfunction...

74335, 340456, F16H 6112, F16H 5912

Patent

active

060566698

ABSTRACT:
An automated shifting system for a manual transmission having a neutral clutch connecting an engine to a multiple ratio transmission, the transmission having servo operated gear shift mechanism. A driver-controlled gear shift switching mechanism is used to activate the servos that effect ratio range changes. A gear shift switching mechanism includes multiple switches for triggering operation of the servos that control the ratio range changes. A range sensing redundancy strategy for the ratio range switches provide improved protection against an unintended change in direction due to three-bit separation between bits of the valid codes and to a range sensing switch failure strategy by identifying when a range change commanded by the driver exhibits a single-point fault condition. A fault condition due to a single-point sensing switch failure is identified even in those instances when a range change commanded by the driver allows continued normal control system operation, although the driver is notified of the failure by a system warning device.

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