Residual power indicator for a storage battery of an electric-powered vehicle
OwnerTung-Shiang Yu, Ian Cheninventors
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Abstract
A residual power indicator includes a current detector for monitoring current consumption of a storage battery, and a processor unit for calculating consumed power of the storage battery. The processor unit includes a memory device for recording a reference value corresponding to the residual power of the storage battery. The reference value in the memory device is periodically updated by the processor unit to reflect actual residual power of the storage battery. A display unit is controlled by the processor unit so as to provide a visual indication corresponding to the reference value in the memory device.
Claims12
A residual power indicator for a storage battery, comprising:
- a current detector adapted to monitor current consumption of the storage battery;
- a processor unit connected to said current detector and operable so as to calculate consumed power of the storage battery as a function of both time and the current consumption monitored by said current detector, said processor unit including a memory device for recording a reference value corresponding to the residual power of the storage battery, the reference value in said memory device being periodically updated by said processor unit to reflect actual residual power of the storage battery;
- and
- a display unit connected to and controlled by said processor unit so as to provide a visual indication corresponding to the reference value in said memory device.
An electric-powered vehicle comprising:
- a storage battery;
- a drive motor coupled to said storage battery;
- and
- a residual power indicator including
- a current detector connected to said storage battery and said drive motor for monitoring current consumption of said storage battery,
- a processor unit connected to said current detector and operable so as to calculate consumed power of said storage battery as a function of both time and the current consumption monitored by said current detector, said processor unit including a memory device for recording a reference value corresponding to the residual power of said storage battery, the reference value in said memory device being periodically updated by said processor unit to reflect actual residual power of said storage battery, and
- a display unit connected to and controlled by said processor unit so as to provide a visual indication corresponding to the reference value in said memory device.
Dependencies are inferred from the claim text.