Vehicle Speed Control Restart After Intersection Turns
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Solution Overview
Problem
Conventional adaptive cruise control systems interrupt and require manual restart of speed control functions when a vehicle turns right or left at an intersection, lacking a seamless and simple method to resume automatic speed control.
Innovation Solution
A control device with a travel control unit that interrupts the speed control function during braking and restarts it when the driver's operation level of the accelerator pedal is within a predetermined range after turning, using a combination of sensors and condition checks to determine the restart condition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the speed control function is interrupted during braking operation at intersections, then the driver has manual control for turning, but the automatic speed control requires complex manual restart operations
Solution Approach 1:
The speed control function automatically restarts itself after being interrupted during braking at intersections. The system detects the braking operation and intersection turn conditions, then autonomously resumes speed control without requiring the driver to perform manual restart operations, making the system serve itself rather than requiring continuous user intervention
Solution Approach 2:
The system performs preliminary detection of braking operations and intersection turn conditions before the speed control interruption occurs. By anticipating the driver's intent to turn and preparing the system state in advance, the automatic restart can be executed smoothly after the turn is completed, reducing the perceived complexity for the driver
2Ease of operation
If the speed control function is automatically restarted after turns, then driving convenience is improved, but unnecessary restarts may occur
Solution Approach 1:
The system continuously monitors driving conditions including braking operations, intersection turn detection, and accelerator pedal operations. By implementing feedback loops that check whether restart conditions are satisfied (braking was performed before turn, turn was completed, accelerator operation is within predetermined range), the system ensures that automatic restart only occurs when appropriate, preventing unnecessary or inappropriate restarts while maintaining driving convenience
Data Source
AI summary
A control device for a vehicle includes a travel control unit configured to provide a speed control function for automatically controlling a speed of the vehicle. The travel control unit interrupts an operation of the speed control function in response to a braking operation element of the vehicle being operated by a driver during the operation of the speed control function, and restarts the operation of the speed control function when a restart condition is satisfied. The restart condition includes that an operation level of a driving operation element of the vehicle by the driver after the driver turns right or left the vehicle at an intersection is within a predetermined range.