US 4,766,544 AGranted

Apparatus for automatically controlling starting of vehicle powered by internal combustion engine

AssigneeDiesel Kiki Co., Ltd.

InventorsKazumasa Kurihara, Kenji Arai

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Abstract

In an automatic start controlling apparatus for a vehicle having a friction clutch in which the engaging operation of the clutch is automatically carried out in response to the depression of an accelerator pedal in order to carry out the automatic start operation of the vehicle, the apparatus has a first controller for controlling the engine speed in the isochronous control mode in response to the amount of the depression of the accelerator pedal so as to maintain the engine speed at a target speed and a second controller for controlling the engagement of the clutch by controlling the slip rate of the clutch with the passage of time in accordance with a predetermined characteristics, whereby the engine speed is maintained at the target speed during the operation of the engagement of the clutch. As a result, the change in the slip rate of the clutch follows a constant pattern corresponding the characteristics.

Claims7

Dependent claims

An apparatus for automatically controlling the start of a vehicle powered by an internal combustion engine adapted to automatically engage a friction clutch in response to the depression of an accelerator pedal, said apparatus comprising:

means for producing a first signal relating to the amount of depression of the accelerator pedal;
a control means responsive to the first signal for controlling the speed of the engine in isochronous control mode so as to maintain the speed of the engine at a target speed set in relation to the first signal;
a gear detecting means for detecting the gear position at which the vehicle starts;
a setting means responsive to the first signal and the output of said gear detecting means for setting target slip rate characteristics indicating the engaging control characteristics;
a slip detecting means for detecting the actual slip rate of said clutch at each instant;
and
means responsive to the outputs of said setting means and said slip detecting means for controlling the operation for engaging said clutch in such a way that the actual slip rate is changed with the passage of time in accordance with the target slip rate characteristics.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/831,728Filed 21 Feb 1986
Priority: JP 60-3533226 Feb 1985
Granted: 23 Aug 1988
Term ends: Not estimatedThe source records don’t support an estimate.

Classification23 codes

F16D 48/064
Control by electric or electronic means, e.g. of fluid pressure: control of electrically or electromagnetically actuated clutches
B60W 30/18027
Related to particular drive situations: drive off, accelerating from standstill
F16D 48/06
External control of clutches: control by electric or electronic means, e.g. of fluid pressure
F16D 48/08
Control by electric or electronic means, e.g. of fluid pressure: regulating clutch take-up on starting