Title:
CONTROL DEVICE FOR HYBRID VEHICLE
Document Type and Number:
Japanese Patent JP2022190986
Kind Code:
A
Abstract:
To provide a control device for a hybrid vehicle capable of preventing overspeed of an internal combustion engine even in a state where an intermittent operation of the internal combustion engine is prohibited.SOLUTION: A control device 35 is configured to enable traveling through an intermittent operation of an internal combustion engine 2 in a hybrid vehicle 1 including: a first motor generator 25 for power generation; and the internal combustion engine 2 and a second motor generator 26 that can output traveling driving force. The control device 35 includes: estimation means for estimating oil dilution amount of the internal combustion engine 2; measurement means for measuring a temperature of an exhaust emission control catalyst provided in the internal combustion engine 2; and detection means for detecting speed of the internal combustion engine 2 and rotational frequency of the first motor generator 25. When the oil dilution amount exceeds a predetermined value and a catalyst temperature exceeds a predetermined value, intermittent stop of the internal combustion engine 2 is prohibited and control responsiveness of the first motor generator 25 is enhanced or a speed upper limit threshold value of the internal combustion engine 2 is lowered.SELECTED DRAWING: Figure 3
Inventors:
YONEMURA KOICHIRO
AOKI KAZUMA
AOKI KAZUMA
Application Number:
JP2021099558A
Publication Date:
December 27, 2022
Filing Date:
June 15, 2021
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B60W10/06; B60K6/445; B60W10/08; B60W20/00; B60W20/14; B60W20/16; F02D29/06
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Toshifumi Onuki
Akihiko Eguchi