US 2021/0171016 A1Published application

Control apparatus for vehicle

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsTakeshi ISHIWADA, Masaya YANO

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Abstract

A control apparatus for a vehicle that includes: drive wheels; an engine; a flywheel damper connected to the engine; at least one inertial body provided between the flywheel damper and the drive wheels; and a clutch for connecting and disconnecting between the flywheel damper and the at least one inertial body. In a process of reduction of a rotational speed of the engine for stopping the engine, the control apparatus keeps the clutch engaged until the rotational speed has passed through a first resonance speed range, and causes the clutch to be released before the rotational speed reaches a second resonance speed range. The first resonance speed range is a range of the rotational speed in which resonance is generated with the clutch being released. The second resonance speed range is a range of the rotational speed in which the resonance is generated with the clutch being engaged.

Claims4

Dependent claims

A control apparatus for a vehicle that includes:

drive wheels;
an internal combustion engine;
a flywheel damper connected to the internal combustion engine;
at least one inertial body provided in a drive-force transmission path between the flywheel damper and the drive wheels;
and a clutch configured to connect and disconnect between the flywheel damper and the at least one inertial body,
the control apparatus comprising an internal-combustion-engine stop control portion configured, in a process of reduction of a rotational speed of the internal combustion engine when the internal combustion engine is to be stopped, to keep the clutch engaged in a stage until the rotational speed of the internal combustion engine has passed through a first resonance speed range, and to cause the clutch to be released before the rotational speed of the internal combustion engine reaches a second resonance speed range,
wherein the first resonance speed range is a range of the rotational speed in which resonance is generated with the clutch being released, and
wherein the second resonance speed range is a range of the rotational speed in which the resonance is generated with the clutch being engaged.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/114,805Filed 8 Dec 2020
Priority: JP 2019-2225269 Dec 2019
Published: 10 Jun 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification23 codes

B60K 6/48
Characterised by the architecture of the hybrid electric vehicle: parallel type
B60W 20/40
Control systems specially adapted for hybrid vehicles: controlling the engagement or disengagement of prime movers, e.g. for transition between…
B60K 6/387
Characterised by the driveline clutches: actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
B60W 10/02
Conjoint control of vehicle sub-units of different type or different function: including control of driveline clutches

Family

US 11,161,498 B2Related patent
US 2021/0171016 A1This patent

From the US filing history. Foreign family members aren’t listed.

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