Vehicle Control Apparatus for EPB Parking Stability
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Solution Overview
Problem
The Electronic Parking Brake (EPB) apparatus experiences malfunctions due to CAN BUS overload, limiting its ability to ensure stability and reliability during vehicle parking, and fails to effectively alleviate driver anxiety regarding parking feasibility.
Innovation Solution
A vehicle control apparatus comprising an inputter, determiner, and controller that receives start operation signals, AVH mode signals, wheel information, and longitudinal acceleration data to determine if conditions are normal, thereby controlling the EPB for safe parking and incorporating an identifier to inform the driver about parking feasibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the EPB apparatus operates automatically based on simple signals, then the operation is simple and fast, but the system reliability deteriorates due to CAN BUS overload malfunctions
Solution Approach 1:
The control apparatus performs preliminary determination of multiple parameters (wheel velocity, longitudinal acceleration, AVH switch state) before activating the EPB parking function. This preliminary check ensures that parking operations only proceed when all conditions are normal, preventing malfunctions while maintaining automatic operation convenience
Solution Approach 2:
The system continuously monitors multiple parameters including wheel velocity, longitudinal acceleration, and AVH switch information, and uses this feedback to dynamically control the EPB operation. This feedback mechanism ensures reliable operation by adjusting parking activation based on real-time vehicle state
2Reliability
If the system checks multiple parameters before parking, then the reliability improves, but the device complexity increases due to additional sensors and processing
Solution Approach 1:
The control apparatus integrates multiple parameter determination functions into a single control unit that processes wheel velocity, longitudinal acceleration, and AVH switch information together. This multi-functional approach improves parking reliability through comprehensive monitoring while avoiding the complexity of separate dedicated systems for each parameter
Solution Approach 2:
The system combines the determination of wheel information, longitudinal acceleration information, and AVH switch information into a unified control process. By merging these determination functions into one integrated flow, the system achieves reliable multi-parameter checking without the complexity of multiple independent control systems
3Speed
If the EPB performs parking without condition checking, then the operation speed is fast, but the driver anxiety increases due to uncertain parking feasibility
Solution Approach 1:
The system performs preliminary determination of parking feasibility by checking wheel velocity, longitudinal acceleration, and AVH switch state before executing the EPB parking command. This preliminary action provides driver confidence by ensuring parking only occurs when conditions are appropriate, while the actual parking execution remains fast once conditions are met
Solution Approach 2:
The control apparatus provides feedback to the driver through the identifier about parking feasibility based on real-time monitoring of vehicle parameters. This feedback mechanism reduces driver anxiety by clearly indicating whether parking can be performed, while maintaining fast execution speed when parking conditions are satisfied
Data Source
AI summary
Disclosed herein are an apparatus for controlling a vehicle and method thereof. An apparatus for controlling a vehicle, the apparatus includes an inputter configured to receive a start operation signal from a starter, receive an AVH mode operation signal from an Automatic Vehicle Hold(AVH), receive Wheel information, longitudinal acceleration information and AVH switch information from an Electronic Stability Control(ESC), and a determiner configured to determine whether the AVH mode operation signal is an ON operation signal when the start operation signal is an OFF operation signal, and determines whether the at least one of the wheel information, the longitudinal acceleration information and the AVH switch information is in a normal state when the AVH mode operation signal is the ON operation signal and a controller configured to control an Electronic Parking Brake(EPB) to perform parking in the EPB when the at least one of the wheel information, the longitudinal acceleration information, and the AVH switch information is in the normal state.