Automatic transmission system
This patent describes an automatic transmission system for a vehicle having a gear-type transmission, a clutch connected to the gear-type transmission and an actuating means responsive to an electric signal for operating the gear-type transmission and the clutch so as to shift the gear-type transmission into a target gear position. The system consists of: means for producing a first signal relating to the vehicle speed; means for producing a second signal relating to the amount of operation of an accelerator pedal; a first means responsive to the second signal for producing a rate signal indicating the rate of the operation of the accelerator pedal per unit time for each depression of the accelerator pedal; a second means responsive to the first signal for producing a maximum acceleration signal indicating the maximum acceleration of the vehicle due to the depression of the accelerator pedal; a third means responsive to the signals from the first and second means for calculating the vehicle load and producing a third signal indicating the calculating vehicle load; and a control means responsive to the first through third signals for producing a control signal for operating the actuating means so as to shift the gear-type transmission into the target gear position determined for the operating condition of the vehicle at that time.
- Assignee:
- Diesel Kiki Co., Ltd., Tokyo
- Patent Number(s):
- US 4789936
- OSTI ID:
- 6483266
- Resource Relation:
- Patent File Date: Filed date 4 Nov 1985
- Country of Publication:
- United States
- Language:
- English
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99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
MECHANICAL TRANSMISSIONS
COMPUTERIZED CONTROL SYSTEMS
ACTUATORS
AUTOMATION
CONTROL SYSTEMS
DESIGN
GEARS
SIGNALS
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330602* - Vehicle Design Factors- Engine-Transmission Matching
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)