Control apparatus for hybrid vehicle

The hybrid vehicle control device addresses the limited range issue by strategically using the engine and electric motor based on output thresholds to reduce battery drain and extend evacuation driving distance.

JP2025165335APending Publication Date: 2025-11-04TOYOTA JIDOSHA KK
1 Cites 0 Cited by

Patent Information

Application Number
JP2024069390
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-04-22
Publication Date
2025-11-04

AI Technical Summary

Technical Problem

Existing hybrid vehicle technologies fail to effectively extend travel distance during evacuation driving due to battery power consumption when an engine output abnormality occurs, limiting the vehicle's range, especially when the abnormality is not caused by incorrect ignition timing.

Method used

A control device for a hybrid vehicle that, upon detecting an engine output abnormality, stops the engine if the average output is below a threshold and uses only the electric motor for evacuation, or continues using both engine and electric motor if the average output is above the threshold, thereby reducing battery power consumption.

Benefits of technology

This approach extends the travel distance during evacuation driving by minimizing battery power consumption when the engine is operational, allowing continued use of the engine to supplement the electric motor's power.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

To provide a control apparatus for a hybrid vehicle that can extend an available travel distance of evacuation travel in a case where an output abnormality of an engine occurs.SOLUTION: In a case where an abnormality occurs in an effective engine output Pe and when an average value Pav of the effective engine output Pe during a given period TS is less than a predetermined threshold TH greater than zero, the engine 12 is stopped and evacuation travel is performed only with power from a second motor MG2. When the average value Pav is equal to or higher than the threshold TH, evacuation travel is performed with power from the engine 12 and the second motor MG2. Thus, in a case where an output abnormality of the engine 12 occurs and the average value Pav is equal to of higher than the threshold TH, the engine 12 is driven instead of being stopped, reducing power consumption (reduction in charged power) of a battery 54 by the second motor MG2, thus making it possible to extend the available travel distance of evacuation travel.SELECTED DRAWING: Figure 2
Need to check novelty before this filing date? Find Prior Art