Constant speed control apparatus for motor vehicle

Details Constant speed control apparatus for motor vehicle Constant speed control apparatus for motor vehicle

1989-04-26

1991-04-23

MacDonald, Allen R.

Boots, shoes, and leggings

36443107, 3644241, 36442404, B60K 3100, B60K 4118

Patent

active

050104900

ABSTRACT:
A constant speed control apparatus for a motor vehicle includes a setting section for setting a target vehicle speed, a first detection section for detecting a vehicle speed of a traveling vehicle, a shift-down signal output section for, when the detected vehicle speed is decreased from the target vehicle speed to fall outside a predetermined range in a constant speed travel state, outputting a signal to cause an automatic transmission to perform a shift-down operation, a second detection section for detecting that the detected vehicle speed is essentially recovered to the target vehicle speed after the shift-down signal is output, an estimation section for estimating a road surface inclination on the basis of an engine load and the detected vehicle speed, and a shift-up signal output section for, when the detection result by the second detection section and an estimation result of essentially not an uphill by the estimation section are established, outputting a shift-up signal to the automatic transmission.

REFERENCES:
patent: 4414863 (1983-11-01), Heino
patent: 4421192 (1983-12-01), Ito et al.
patent: 4451888 (1984-05-01), Kuno et al .
patent: 4697478 (1987-10-01), Mastumoto et al.
patent: 4833612 (1989-05-01), Okuno et al.
patent: 4845621 (1989-07-01), Kawata et al.

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