Electric system and vehicle

• US 9,525,305 B2
• Filed: 07/22/2013
• Issued: 12/20/2016
• Est. Priority Date: 08/22/2012
• Status: Expired due to Fees

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Shibata, Akihide, Komiya, Kenji, Kataoka, Kohtaroh, Iwata, Hiroshi
• Primary Examiner(s): Patel, Tulsidas C
• Assistant Examiner(s): GUGGER, SEAN A
• Application Number:
  US14/408,631
• Publication Number:
  US 20150303739A1
• Time in Patent Office: 1,247 Days
• Field of Search: 290/38.C
• 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 comprising:

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,

the electric device includes a load,

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

electric energy from the capacitor is output to the electric device via the first converter,

the electric device includes a first secondary battery, a second secondary battery, and a second converter,

the load is connected with the second secondary battery via the first secondary battery and the second converter, and the second secondary battery supplies power to the first secondary battery via the second converter.

2. The electric system according to claim 1,

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.

3. The electric system according to claim 2,

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.

4. A vehicle comprising:

the electric system according to claim 1;

an internal combustion engine that is a motive power source of the vehicle; and

a starter that drives the internal combustion engine,

wherein the electric device includes the starter as the load.

5. The vehicle according to claim 4, further comprising a start-stop means that stops the internal combustion engine when the vehicle stands still.