Vehicle Equipment Control for Visibility During Manual Takeover
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Solution Overview
Problem
When automated driving control is switched to manual driving control, drivers face difficulty in visually recognizing their surroundings due to changes in vehicle-mounted equipment operations, such as headlight intensity and wiper speed, which can be inconsistent with the desired operation modes.
Innovation Solution
A vehicle-mounted equipment control device that adjusts the operation modes of equipment like headlights, wipers, and air-conditioning systems based on sensors' data, ensuring visibility securing operations continue seamlessly during the transition from automated to manual driving, regardless of the operation mode specified by the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the vehicle-mounted equipment operation modes are changed immediately when switching from automated driving control to manual driving control, then the equipment responds quickly to driver needs, but the driver's visual recognition of surroundings deteriorates due to abrupt changes in headlight intensity and wiper speed
Solution Approach 1:
The control unit determines a continuation period after switching from automated to manual driving control, during which the operation modes of vehicle-mounted equipment are maintained without immediate change. This preliminary maintenance of equipment states ensures that the driver's visual recognition of surroundings is not abruptly affected, while still allowing equipment to respond to driver needs after the continuation period expires.
2Illumination intensity
If the headlight luminous intensity is increased for a predetermined period after switching to manual driving control, then the driver's visual recognition is improved, but the energy consumption of the headlight increases
Solution Approach 1:
The control unit determines a continuation period after switching from automated to manual driving control, during which the headlight operation mode is maintained. This controlled continuation period provides sufficient time for the driver to visually recognize surroundings without excessive energy consumption that would result from indefinite or extended high-intensity lighting.
3Illumination intensity
If the operation modes of vehicle-mounted equipment are continuously maintained after switching to manual driving control, then the driver's visual recognition is consistently improved, but the equipment complexity and control duration increase
Solution Approach 1:
The control unit determines a continuation period after switching from automated to manual driving control, during which the operation modes of vehicle-mounted equipment are maintained. After this predetermined continuation period, the control unit allows the operation modes to change according to actual conditions. This time-limited approach provides consistent visual recognition improvement during the critical transition period while avoiding excessive control complexity that would result from indefinite equipment maintenance.
Data Source
Figure 1
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Figure 4
AI summary
A vehicle-mounted equipment control device includes a control unit 33 that causes equipment of any of a headlight 21, a wiper 22, and an air-conditioning device 23 to continue a visual securing operation for securing visibility of a driver of a vehicle 100 even after driving control of the vehicle 100 is switched from automated driving control to manual driving control regardless of an operation mode of the equipment specified by an operation unit (16a to 16c) for setting an operation of the equipment when an operation mode executed by the equipment immediately before driving control of the vehicle 100 is switched from automated driving control to manual driving control is an operation mode corresponding to the visual securing operation.