Hybrid Vehicle Drive Support With Stored Control Effect Notification

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing hybrid vehicles do not appropriately notify users of the control effects of drive support control, especially when the control is interrupted or stopped during temporary breaks, making it unclear how to resume guidance upon system activation.

Innovation Solution

A hybrid vehicle system that accumulates and stores control effects during drive support control, and holds these effects under specific conditions such as battery temperature, state of charge, or deviation from the route, ensuring notification upon reaching the destination or system restart.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the drive support control is interrupted or stopped during temporary breaks, then the system can respond to changing conditions (battery temperature, SOC, route deviation), but the user cannot be notified of the accumulated control effect when guidance is restarted

Engineering Contradiction:

Improvesystem responsiveness to changing conditionsVSAvoidcontrol effect data

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The control effect data is accumulated and stored in advance in the storage unit before the drive support control is interrupted or stopped. This preliminary storage ensures that the information is preserved and can be notified to the user when the control is restarted, preventing information loss while allowing the system to respond to changing conditions.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If the control effect data is deleted after notification, then memory space is freed for new data, but the user cannot be notified of control effects after interruptions or stops

Engineering Contradiction:

Improvememory utilization efficiencyVSAvoidcontrol effect data

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

3Reliability

If the drive support control continuously monitors and holds data, then complete control effect information is available, but the system complexity and data management burden increase

Engineering Contradiction:

Improvecontrol effect notification accuracyVSAvoiddata management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The control effect data is extracted and stored in a dedicated storage unit separate from the main control logic. This separation simplifies the data management by providing a dedicated repository for control effect information, reducing the complexity of data handling while ensuring complete and accurate notification.

Inventive Principle:

Principle #2Taking out (Extraction)

4Loss of information

If the system notifies control effect only at destination arrival, then the notification is complete, but the user loses information about control effects during interruptions or stops

Engineering Contradiction:

Improvecontrol effect data completenessVSAvoidnotification timing

Core Design Contradiction:

Loss of informationVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP3795400B1Hybrid vehicle

Publication Date: 2026.03.25 TOYOTA JIDOSHA KK

Figure 1
Figure 2
Figure 3

AI summary

There is provided a hybrid vehicle that enables user to be more appropriately notified of a control effect by performing a drive support control. A hybrid vehicle includes an engine; a motor; a battery; map information; and a control device programmed to set a drive route from a current location to a destination, to create a drive support plan that assigns one of drive modes including a CD mode and a CS mode to each of drive sections of the drive route, and to perform drive support control that causes the hybrid vehicle to be driven along the drive support plan. The control device accumulates control effect obtained by performing the drive support control and notifies the control effect when the hybrid vehicle reaches the destination. The control device deletes the control effect when the predetermined deletion condition is satisfied.