Control device for a hybrid vehicle
By using the control device of hybrid vehicles, the torque and speed are adjusted in coordination between the engine and motor, which solves the problem of vehicle body vibration caused by fuel cut-off in specific cylinders and improves driving performance.
CN122106775APending Publication Date: 2026-05-29TOYOTA JIDOSHA KK
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2025-11-11
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
In hybrid vehicles, when specific cylinders are de-fueled, the torque difference between the fuel supply and the de-fueling cylinders causes vehicle vibration, affecting driving performance.
Method used
Before performing fuel cut-off for a specific cylinder using the control device of a hybrid vehicle, the engine torque is adjusted to below a predetermined value by the coordinated control of the engine and motor, and vibration mitigation is performed when necessary to reduce torque difference.
Benefits of technology
It effectively suppresses vehicle body vibration and driving performance degradation caused by specific cylinder fuel cut-off treatment, ensuring that the treatment can be safely implemented when necessary.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122106775A_ABST
Abstract
The present application suppresses deterioration of drivability caused by execution of a specific cylinder fuel cut process for stopping fuel supply to a part of cylinders. A hybrid vehicle provided with an engine and a motor (1st power generator motor, 2nd power generator motor) as a drive source for running, the engine being provided with a plurality of cylinders, wherein the following processes are executed: a specific cylinder fuel cut process for stopping fuel supply to a part of the plurality of cylinders of the engine and for implementing fuel supply to the remaining cylinders; and a vibration alleviation process for adjusting engine torque to be below a predetermined value through cooperative control of the engine and the motor before execution of the specific cylinder fuel cut process.
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