Method for control of automatic mechanical transmission system utilizing a microprocessor based electronic controller

Patent · Tue Jun 17 04:00:00 EDT 1986

OSTI ID:5589289

Daubenspeck, R E; Smyth, R R; Speranza,

An improved method of controlling a vehicle automatic mechanical transmission system is described comprising a throttling device controlled engine, and an operator actuated throttle position indication device, a multi-speed jaw clutch type change gear transmission, a nonpositive coupling device drivingly interposed the engine and the transmission and actuators responsive to command signals for controlling that status of the throttling device, coupling device and transmission. The method includes utilizing a digital microprocessor based electronic control unit for processing current and stored inputs in accordance with predetermined logic routines to determine desired engaged ratio of the transmission and to generate command outputs to the actuators. The control unit has means to receive inputs indicative of at least transmission input shaft speed, transmission output shaft speed, engine speed and operator actuated throttle position and means to condition and store the input information.

• Assignee: Eaton Corp., Cleveland, OH
• Patent Number(s): US 4595986
• OSTI ID: 5589289
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
ACTUATORS
ALGORITHMS
COMPUTERIZED CONTROL SYSTEMS
COMPUTERS
CONTROL
CONTROL SYSTEMS
DATA PROCESSING
ELECTRONIC CIRCUITS
FREQUENCY CONTROL
GEARS
MACHINE PARTS
MATHEMATICAL LOGIC
MECHANICAL TRANSMISSIONS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
PERFORMANCE
POSITIONING
PROCESSING
SIGNALS
VEHICLES
VELOCITY