US 2024/0270233 A1Published application

Vehicle driving system

AssigneeMazda Motor Corporation

InventorsMikinori Ohashi, Junichi Taga, Satoshi Watanabe, Yuki Hikichi

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Abstract

A driving system for a vehicle includes an engine including a fuel injection valve, an electric motor, a hydraulic clutch which connects/disconnects the engine to/from the motor, a hydraulic pressure sensor which detects hydraulic pressure of the clutch, and a controller which selectively executes one of a motor travel mode where the motor is activated and the engine is stopped, and an engine travel mode where at least the engine is activated. In a startup of the engine accompanying a change from the motor travel mode to the engine travel mode, the controller causes the clutch to transition from a disconnected state to a connected state, determines the connected state of the clutch based on hydraulic pressure detected by the hydraulic pressure sensor, and when the clutch is confirmed to be in a predetermined connection initial state, the controller causes the fuel injection valve to inject fuel.

Claims11

Dependent claims

A driving system for a vehicle, comprising:

an engine including a fuel injection valve;
an electric motor coupled to wheels;
a hydraulic clutch configured to connect and disconnect the engine to and from the motor;
a hydraulic pressure sensor configured to detect a hydraulic pressure of the clutch;
and
a controller configured to selectively execute any one of a motor travel mode in which the motor is activated and the engine is stopped, and an engine travel mode in which at least the engine is activated,
wherein in a startup of the engine accompanying a change of a travel mode from the motor travel mode to the engine travel mode:
the controller causes the clutch to transition from a disconnected state to a connected state,
the controller determines the connected state of the clutch based on the hydraulic pressure detected by the hydraulic pressure sensor, and
as a result of the determination, when the clutch is confirmed to be in a predetermined connection initial state, the controller causes the fuel injection valve to inject fuel.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/410,131Filed 11 Jan 2024
Priority: JP 2023-0186459 Feb 2023
Published: 15 Aug 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification44 codes

B60K 6/38
Characterised by apparatus, components or means specially adapted for HEVs: characterised by the driveline clutches
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
B60K 6/48
Characterised by the architecture of the hybrid electric vehicle: parallel type