Vehicle Pre-Conditioning Control Using Route Information
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Solution Overview
Problem
Current pre-air conditioning control systems in vehicles often fail to ensure a comfortable temperature in the vehicle compartment when an occupant enters, as they rely solely on the occupant's current position and vehicle position, lacking consideration for the occupant's route and activity level.
Innovation Solution
A vehicle control system that includes a position identifying unit, a route information acquiring unit, and a control information determining unit to determine a set temperature and control start timing for pre-air conditioning based on the occupant's route information, ensuring the vehicle compartment is comfortable upon entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-air conditioning control is performed based only on current position and vehicle position, then the control system is simple, but the temperature comfort upon occupant entry cannot be ensured
Solution Approach 1:
The system performs preliminary determination of control start timing and set temperature by acquiring route information in advance. The control start timing is set based on the expected arrival time at the boarding position, and the set temperature is determined considering the route type (e.g., outdoor routes requiring higher temperatures). This preliminary action ensures temperature comfort upon entry while avoiding overly early or late activation of the air conditioning system.
Solution Approach 2:
The system introduces route information as an intermediary element between the simple position-based control and the complex temperature control. By using route information (including route type and expected arrival time) as a mediator, the system can determine appropriate control parameters without requiring direct complex interactions between multiple sensors and control mechanisms.
2Reliability
If pre-air conditioning control starts early to ensure comfort, then temperature comfort is improved, but energy consumption increases
Solution Approach 1:
The system performs preliminary calculation of the control start timing based on the expected arrival time at the boarding position derived from route information. By setting the control start timing to a predetermined period before the expected arrival time (rather than starting immediately or too early), the system achieves temperature comfort upon entry while minimizing unnecessary energy consumption during extended pre-conditioning periods.
Solution Approach 2:
The system dynamically adjusts the control start timing and set temperature based on varying route conditions. Different route types (e.g., outdoor routes requiring walking versus direct access) result in different expected arrival times and temperature requirements. This dynamic adjustment ensures energy efficiency by adapting the pre-conditioning duration and intensity to the specific route characteristics.
3Use of energy by moving object
If pre-air conditioning control uses route information to adjust temperature, then energy efficiency is improved, but the system complexity increases
Solution Approach 1:
The system uses route information as an intermediary to bridge the gap between simple position tracking and complex energy-efficient temperature control. By acquiring route information (which includes route type and expected arrival time) and using it to determine control parameters, the system achieves energy efficiency without requiring complex real-time environmental sensing or adaptive control mechanisms.
Solution Approach 2:
The system changes control parameters (control start timing and set temperature) based on route information parameters. Specifically, the control start timing is set to a predetermined period before the expected arrival time, and the set temperature is adjusted according to the route type. This parameter-based approach enables energy efficiency through straightforward conditional logic rather than complex control algorithms.
Data Source
AI summary
A vehicle control system includes a position identifying unit, a route information acquiring unit, a control information determining unit, and a control unit. The position identifying unit is configured to identify an expected boarding position where an occupant is to get in a vehicle. The route information acquiring unit is configured to acquire route information of the occupant to the expected boarding position. The control information determining unit is configured to determine, on the basis of the route information, a set temperature, a control start timing, or both as control information to be used for pre-air conditioning control for a vehicle compartment space of the vehicle. The control unit is configured to perform at least the pre-air conditioning control on the basis of the control information.