Vehicle Battery Pre-heating via Internal Joule Heating
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Solution Overview
Problem
Conventional vehicle charging systems require a significant amount of time to heat the storage battery to a suitable temperature for efficient charging, leading to increased wait times and reduced charging efficiency, especially in scenarios where multiple vehicles are being charged simultaneously.
Innovation Solution
A control apparatus that performs an internal temperature adjustment process using energy stored in the vehicle's battery, allowing the battery to be pre-heated before connecting to the external power supply, thereby reducing the overall charging time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the storage battery is heated using electric power from the power supply apparatus before charging, then the battery temperature reaches optimal charging conditions, but the charging time increases and charging efficiency decreases
Solution Approach 1:
The control apparatus performs preliminary temperature adjustment of the storage battery using the vehicle's own power consumption before external charging begins. This preliminary action ensures the battery reaches optimal temperature for charging without delaying the charging process, as the heating occurs during normal vehicle operation rather than during dedicated heating time
Solution Approach 2:
The system uses the vehicle's own power consumption during normal operation to heat the storage battery, rather than relying on external power supply apparatus for heating. This self-service approach allows the battery to be pre-heated using internally generated heat from power consumption, eliminating the need for separate heating time during charging
2Temperature
If the storage battery is heated using electric power from the power supply apparatus, then the battery temperature is adjusted to suitable range, but the power supply capacity is reduced and charging efficiency decreases
Solution Approach 1:
The control apparatus utilizes the vehicle's own power consumption during normal operation to heat the storage battery, rather than diverting external charging power for heating purposes. This self-service mechanism ensures that all power supply apparatus capacity is dedicated to charging, while the battery is heated using internally generated heat, thereby maintaining maximum charging efficiency
Solution Approach 2:
The system merges the heating function with normal power consumption during vehicle operation. The heat generated during regular vehicle operation is directed to the storage battery for temperature adjustment, combining two functions (power consumption and battery heating) into one process, thereby eliminating the need for separate heating power that would reduce charging efficiency
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables faster charging by ensuring the storage battery is at an optimal temperature upon connection, shortening the time required for charging completion and improving efficiency in high-volume charging scenarios.
Implementation Method 1
a storage battery that stores therein electric power that is supplied from an external power supply apparatus
Implementation Method 2
a rotating electric machine that is driven by electric power from the storage battery
Implementation Method 3
performs an internal temperature adjustment process that is a process for adjusting the temperature of the storage battery using energy other than the electric power supplied from the power supply apparatus
Data Source
AI summary
A control apparatus for a vehicle is provided. The vehicle includes a storage battery that stores therein electric power that is supplied from an external power supply apparatus and a rotating electric machine that is driven by electric power from the storage battery. The control apparatus includes a temperature adjusting unit that adjusts a temperature of the storage battery. The temperature adjusting unit performs an internal temperature adjustment process that is a process for adjusting the temperature of the storage battery using energy other than the electric power supplied from the power supply apparatus.