Voltage regulation system
The voltage regulation system addresses the issue of unsuitable DCDC converter operation by adjusting alternator voltage based on wiring resistance, preventing degradation and reducing replacement costs.
JP2026064014APending Publication Date: 2026-04-13TOYOTA JIDOSHA KK
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2024-10-01
- Publication Date
- 2026-04-13
AI Technical Summary
Technical Problem
In power supply systems where a DCDC converter and an alternator are connected in parallel, the different resistance values in the wiring cause voltage drops, leading to unsuitable operation of the DCDC converter and accelerated deterioration.
Method used
A voltage regulation system that adjusts the alternator's generated voltage based on the resistance values of the wiring to ensure the DCDC converter operates within its rated output current, using a control unit and storage unit to manage the resistance values.
Benefits of technology
Prevents the DCDC converter from operating below its rated output current, thereby suppressing degradation and reducing replacement costs.
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Smart Images
Figure 2026064014000001_ABST
Abstract
This invention provides a voltage regulation system that can suppress the progression of degradation in DC-DC converters. [Solution] A voltage adjustment system used in a power supply system comprising a DC-DC converter and an alternator connected in parallel to a relay box to supply power to a vehicle load, comprising: a storage unit that stores a first resistance value which is the resistance value of the wiring connecting the alternator to the relay box and a second resistance value which is the resistance value of the wiring connecting the DC-DC converter to the relay box; and a control unit that controls the operation of the alternator, wherein the control unit adjusts the generated voltage of the alternator based on the first resistance value and the second resistance value when the current consumption of the vehicle load exceeds the rated output current of the DC-DC converter.
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Citation Information
Patent Citations
Charge control device
JP2022152834A