JPS5519957A - Constant speed running control system for vehicle - Google Patents
Constant speed running control system for vehicleInfo
- Publication number
- JPS5519957A JPS5519957A JP9302678A JP9302678A JPS5519957A JP S5519957 A JPS5519957 A JP S5519957A JP 9302678 A JP9302678 A JP 9302678A JP 9302678 A JP9302678 A JP 9302678A JP S5519957 A JPS5519957 A JP S5519957A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle speed
- speed
- signal
- vehicle
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Controls For Constant Speed Travelling (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
PURPOSE: To permit reliable constant speed running to be obtained through negative feedback of a speed difference signal, which controls the throttle valve aperture, through a delay element for superimposition upon a vehicle speed signal in such a manner as to control the vehicle speed of the constant speed running control system to a goal speed.
CONSTITUTION: A voltage proportional to the vehicle speed is obtained in a vehicle speed response voltage generator 1, and error signal is obtained in an error signal generator 20 from the memorized vehicle speed and the actual vehicle speed. A negative feedback circuit 50, which provides compensation to the advancement of the movement of a vacuum actuator 100 for moving a throttle valve 132 for controlling the vehicle speed, i.e., engine output, is constructed such that a vehicle speed correction signal for correcting an excessive increase or decrease of the vehicle speed, as produced from a comparator 41 of a comparator circuit 40, or a signal responsive to the correction signal is fed back through an integrating circuit consisting of a resistor or a capacitor, i.e., a delay element, for superimposition upon the vehicle speed signal. With this arrangement, it is possible to prevent hunting or overshoot or undershoot and obtain steady control of the vehicle speed to a desired goal speed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9302678A JPS5519957A (en) | 1978-07-28 | 1978-07-28 | Constant speed running control system for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9302678A JPS5519957A (en) | 1978-07-28 | 1978-07-28 | Constant speed running control system for vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5519957A true JPS5519957A (en) | 1980-02-13 |
Family
ID=14070970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9302678A Pending JPS5519957A (en) | 1978-07-28 | 1978-07-28 | Constant speed running control system for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5519957A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5043647A (en) * | 1988-05-05 | 1991-08-27 | Robert Bosch Gmbh | System and method for controlling the speed of a vehicle having an internal combustion engine |
-
1978
- 1978-07-28 JP JP9302678A patent/JPS5519957A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5043647A (en) * | 1988-05-05 | 1991-08-27 | Robert Bosch Gmbh | System and method for controlling the speed of a vehicle having an internal combustion engine |
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