Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1984-03-27
1989-05-30
Pate, III, William F.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74865, 74869, 3644241, B60K 4106
Patent
active
048339458
ABSTRACT:
A vehicular automatic transmission control system comprising: a hydraulic control circuit including a hydraulic pressure source, a pressure regulator valve for producing a line pressure by regulating the oil pressure supplied from the pressure source, a number of shift valves for selectively engaging and releasing friction members of the automatic transmission according to operating conditions of a vehicle such as vehicle speed and throttle opening rate, and a solenoid valve blocking switching operation of a highest shift gear toward a highest gear position of the transmission; and an electronic control circuit for controlling on- and off-ranges of the solenoid valve, including a manual mode switch for setting the control either in a highest speed non-cancel mode permitting shifts to the highest gear position or a highest speed cancel mode inhibiting shifts to the highest gear position and forcibly effecting a downshift when selected during operation in the highest gear position, vehicle speed sensor, and a kickdown switch detecting a throttle opening rate greater than a predetermined value; characterized in that: the electronic control circuit is provided with circuitry for resetting the mode of control in a predetermined initial state upon turning on a power switch of the engine.
REFERENCES:
patent: 3903759 (1975-09-01), Hashimoto
patent: 3927579 (1975-12-01), Golan
patent: 3943799 (1976-03-01), Sakai et al.
patent: 4129051 (1978-12-01), Shindo et al.
patent: 4143563 (1979-03-01), Shindo et al.
patent: 4145937 (1979-03-01), Shindo et al.
patent: 4148232 (1979-04-01), Moriya
patent: 4186627 (1980-02-01), Kuromochi
patent: 4346626 (1982-08-01), Kawamoto
patent: 4346627 (1982-08-01), Kawamoto et al.
patent: 4347760 (1982-09-01), Jewett
patent: 4406181 (1983-09-01), Kubo et al.
patent: 4417307 (1983-11-01), Kubo et al.
patent: 4467437 (1984-08-01), Magnusson
patent: 4471437 (1984-09-01), Yoshino et al.
patent: 4486838 (1984-12-01), Itoh et al.
Aisin-Warner Limited
Diehl Dwight G.
Pate III William F.
LandOfFree
Vehicular automatic transmission control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicular automatic transmission control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicular automatic transmission control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2143673