Vehicle control device, vehicle control method, and vehicle control system
The vehicle control system addresses instability from friction braking failures by adjusting braking forces and commands to stabilize vehicle behavior, ensuring safety and control.
JP7727837B2Active Publication Date: 2025-08-21ASTEMO LTD
Patent Information
- Application Number
- JP2024517888
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-04-27
- Filing Date
- 2023-03-10
- Publication Date
- 2025-08-21
- Estimated Expiration
- 2043-03-10
AI Technical Summary
Technical Problem
Existing vehicle control systems do not account for the instability caused by unintended braking forces due to failures in friction braking devices, which can lead to unpredictable vehicle behavior.
Method used
A vehicle control system that adjusts the braking forces applied to opposite wheels to compensate for failures in friction braking devices, ensuring balanced braking forces and coordinated acceleration/deceleration commands to stabilize vehicle behavior.
Benefits of technology
The system effectively stabilizes vehicle behavior by compensating for unintended braking forces, maintaining control and safety even in the event of friction braking device failures.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 0007727837000007 
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Abstract
According to the present invention, a left-front electric brake mechanism applies a braking force to a left-front wheel of a vehicle. A right-front electric brake mechanism applies a braking force to a right-front wheel of the vehicle. A left-rear electric brake mechanism applies a braking force to a left-rear wheel of the vehicle. A right-rear electric brake mechanism applies a braking force to a right-rear wheel of the vehicle. An ECU controls the electric brake mechanisms. When a first braking force applied to a first vehicle wheel (e.g., the left-front wheel) cannot be controlled due to a failure of a first friction brake device (e.g., the left-front electric brake mechanism), the ECU outputs a braking command to cause a second friction brake device (e.g., the right-front electric brake mechanism and / or the right-rear electric brake mechanism) to generate a second braking force corresponding to the magnitude of the first braking force.
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Citation Information
Patent Citations
Electric-vehicular brake force control apparatus
JP2016083949A
Brake device for vehicle
JP2018158683A
Method and apparatus for vehicle braking
US20210370943A1
Control device for responding to failure of brake system of four-wheel drive electric vehicle
US20220017092A1
Braking system for vehicles
WO1999002384A1