Automatic transmission controls with off-highway mode

Details Automatic transmission controls with off-highway mode Automatic transmission controls with off-highway mode

1984-09-12

1986-02-11

Krizmanich, George H.

Machine element or mechanism

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

Preselected indexed position

74752D, 3644241, 192 0092, B60K 4118, B60K 4110

Patent

active

045692556

ABSTRACT:
An improved control for an automatic transmission, preferably an automatic mechanical transmission (10), is provided. The improved control includes an operator selectable mode of operation (D.sub.1) for off-road and other higher resistance vehicle operating conditions. In the off-road mode of operation, the central processing unit (30) will generate upshift commands in accordance with an upshift shift point profile (OHU) such that, assuming constant output shaft speed and throttle position, the engine (12) output power following an upshift will be at least as great as the engine output power prior to the upshift.

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patent: 4338666 (1982-07-01), Suzuki et al.
patent: 4361060 (1982-11-01), Smyth
patent: 4517646 (1985-05-01), Magnusson et al.

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