JPS54155511A - Vehicle speed controlling system - Google Patents
Vehicle speed controlling systemInfo
- Publication number
- JPS54155511A JPS54155511A JP6370678A JP6370678A JPS54155511A JP S54155511 A JPS54155511 A JP S54155511A JP 6370678 A JP6370678 A JP 6370678A JP 6370678 A JP6370678 A JP 6370678A JP S54155511 A JPS54155511 A JP S54155511A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle speed
- resistance
- grade
- running
- torque
- 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
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
PURPOSE: To provide a vehicle speed controlling system, in which feed-forward control for compensating the running resistance or grade resistance is combined with feedback control for exerting a torque corresponding to deviation of the vehicle speed, whereby it is enabled to eliminate steady state error from the control system.
CONSTITUTION: In running-resistance calculating circuit 8, running resistance fR is calculated from the vehicle speed obtained as output signal of speed detector 3. Position of the vehicle is detected by integrating the vehicle speed in integrator 9, and grade resistance fG at a predetermined position is calculated from the output of integrator 9 by grade-resistance calculating circuit 10. Further, sum (f) of torque fP proportional to deviation of the vehicle speed afforded from amplifier 5, running resistance fR and grade resistance fG is made in adder 11, and torque instruction (f) is given to notch selecting means 6. With such an arrangement, torque instruction fM free of steady state error can be afforded from driving means 7.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6370678A JPS54155511A (en) | 1978-05-26 | 1978-05-26 | Vehicle speed controlling system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6370678A JPS54155511A (en) | 1978-05-26 | 1978-05-26 | Vehicle speed controlling system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54155511A true JPS54155511A (en) | 1979-12-07 |
Family
ID=13237076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6370678A Pending JPS54155511A (en) | 1978-05-26 | 1978-05-26 | Vehicle speed controlling system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54155511A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05328539A (en) * | 1992-05-19 | 1993-12-10 | Hitachi Ltd | Controller for electric vehicle |
-
1978
- 1978-05-26 JP JP6370678A patent/JPS54155511A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05328539A (en) * | 1992-05-19 | 1993-12-10 | Hitachi Ltd | Controller for electric vehicle |
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