Title:
AUTOMATIC SPEED CONTROLLER
Document Type and Number:
Japanese Patent JPS60143136
Kind Code:
A
Abstract:
An automatic speed control system particularly for use with coaches has a comparator (12) for comparing the actual road speed of the vehicle with a reference to produce an error signal for controlling the engine power via a control unit (18) so as to hold the vehicle at the desired speed. In addition the error signal is fed to a comparator (52) which, if the error signal indicates too high an excess speed, provides positive retardation of the vehicle via a retardation unit (30) which may be the actual brakes of the vehicle or (preferably) its electric retarder. A comparator (54) may also be arranged to be responsive to excess engine speed and to actuate the retarder via an OR gate (60).
Inventors:
KENESU BURUUSU KOORUDOUERU
Application Number:
JP25662584A
Publication Date:
July 29, 1985
Filing Date:
December 06, 1984
Export Citation:
Assignee:
AE PLC
International Classes:
B60K31/00; B60K31/04; B60T7/12; B60T10/00; F02D41/14; B60W10/00; B60W10/04; B60W10/06; B60W10/18; B60W30/00; B60W30/14; F02D29/02; (IPC1-7): B60K31/00; B60K41/20; F02D29/02; F02D41/14
Attorney, Agent or Firm:
Toshio Yano