Method for driver-dependent shift control of a vehicle sub-trans

Details Method for driver-dependent shift control of a vehicle sub-trans Method for driver-dependent shift control of a vehicle sub-trans

1979-07-24

1982-04-13

Braun, Leslie

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74861, 74863, 74864, B60K 4106, B60K 4110

Patent

active

043241530

ABSTRACT:
A method is disclosed for automatically shifting the sub-transmission of a vehicle which is also equipped with a manual transmission operated by hand by the driver. When the driver shifts by hand to a certain gearing ratio, a vehicle operating parameter is detected, and, on the basis of this detected value, the procedure for shifting the sub-transmission is modified. Shift control of the sub-transmission is performed in accordance with this modified sub-transmission shift procedure, for a first time period, while the manual transmission remains in this gearing ratio, and subsequently for a second time period shift control of the sub-transmission is performed so as to maximize fuel economy, while the manual transmission remains in this gearing ratio.

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