ELECTRIC SYSTEM AND VEHICLE

• US 20150303739A1
• Filed: 07/22/2013
• Published: 10/22/2015
• Est. Priority Date: 08/22/2012
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: KATAOKA, Kohtaroh, IWATA, Hiroshi, SHIBATA, Akihide, KOMIYA, Kenji
• Granted Patent: US 9,525,305 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60R 16/03 for supply of electrical power to vehicle subsystems or for circuit arrangements for charging batteries H02J7/00
• CPC Class Codes: B60R 16/033 characterised by the use of electrical cells or batteries for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36
• CPC Class Codes: F02N 11/0814 comprising means for controlling automatic idle-start-stop
• CPC Class Codes: F02N 11/0866 comprising several power sources, e.g. battery and capacitor or two batteries
• CPC Class Codes: F02N 2011/0885 Capacitors, e.g. for additional power supply
• CPC Class Codes: F02N 2011/0888 DC/DC converters
• CPC Class Codes: H02J 2310/40 The network being an on-board power network, i.e. within a vehicle
• CPC Class Codes: H02J 2310/46 for ICE-powered road vehicles
• CPC Class Codes: H02J 7/345 using capacitors as storage or buffering devices
• CPC Class Codes: H02J 7/35 with light sensitive cells

Abstract

An in-vehicle solar system that supplies electric energy from a solar battery module to an electric device such as a secondary battery, a load, and the like includes a capacitor that accumulates electric energy from the solar battery module and supplies the accumulated electric energy to the electric device.

Claims

1. An electric system that includes a solar battery, an electric device, and a power supply device that supplies electric energy from the solar battery to the electric device,

wherein the power supply device further includes a capacitor that accumulates electric energy from the solar battery and outputs the accumulated electric energy to the electric device, and

the electric device includes a starter as a load, the starter driving an internal combustion engine that is a motive power source of a vehicle.

2. The electric system according to claim 1,

wherein the power supply device further includes a maximum power point tracking module with respect to the solar battery, and

electric energy from the solar battery is supplied to the capacitor via the maximum power point tracking module.

3. The electric system according to claim 1,

wherein the power supply device further includes a converter that converts an output voltage from the capacitor into a prescribed voltage, and

electric energy from the capacitor is output to the electric device via the converter.

8. The electric system according to claim 1, further comprising:

a power supply line that supplies electric energy from the power supply device to the electric device,

wherein a secondary battery and the load as the electric devices are connected with the power supply line.

9. The electric system according to claim 1,

wherein the electric device includes a secondary battery, and

the power supply device is also a charging device that charges the secondary battery with electric energy from the solar battery.

11. The electric system according to claim 1, further comprising:

a secondary battery; and

a switching means that switches between supply of electric energy from the power supply device to the load and supply of electric energy from the secondary battery to the load.

12. A vehicle comprising:

the electric system according to claim 1; and

the internal combustion engine that is driven by the starter.

14. The vehicle according to claim 12, further comprising a start-stop means that stops the internal combustion engine when the vehicle stands still.

4. (canceled)

5. The electric system according to claim 41,

wherein the solar battery is a solar battery module that includes at least one serial-parallel connection unit in which plural parallel connection units in which plural solar battery cells are connected in parallel are serially connected.

6. The electric system according to claim 5,

wherein the solar battery cells are arranged in a matrix, and

the plural solar battery cells are arranged so that all the solar battery cells that configure the parallel connection unit are not aligned on a same straight line with respect to each of the parallel connection units.

7. (canceled)

10. (canceled)

13. (canceled)