Vehicle speed control system
This patent describes a vehicle speed control system for performing vehicle speed control by controlling the displacement of at least one of a hydraulic pump and a hydraulic motor of a hydraulic transmission through an electric servo device, comprising: vehicle speed setting means for generating a voltage signal corresponding to a vehicle speed to be set; compensating means interposed between the vehicle speed setting means and the electric servo device, the compensating means comprising a first delay element; and second delay element having a response characteristic slower than that of the first delay element. A selecting means for judging as to whether a voltage signal changed by the operation of the vehicle speed setting means represents an acceleration command or a deceleration command and for selecting the first delay element when the voltage signal represents an acceleration command and for selecting the second delay element when the voltage signal represents a deceleration command.
- Assignee:
- Kabushiki Kaisha Komatsu Seisakubsho, Tokyo
- Patent Number(s):
- US 4672811
- OSTI ID:
- 6428918
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
ACCELERATION
COMPUTER CALCULATIONS
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
DATA PROCESSING
ELECTRIC MOTORS
ELECTRIC POTENTIAL
EQUIPMENT
HYDRAULIC EQUIPMENT
MACHINE PARTS
MECHANICAL TRANSMISSIONS
MOTORS
PROCESSING
PUMPS
SERVOMECHANISMS
SIGNALS
SPEED REGULATORS
VEHICLES
VELOCITY