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On-board charging system

A technology for on-board charging and charging lines, applied in charging stations, electric vehicle charging technology, transmission systems, etc., can solve problems such as inability to charge

Active Publication Date: 2020-10-13
AUTONETWORKS TECH LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since there are two methods of DC charging, if the method used by the charging pile is inconsistent with the method used by the vehicle, there may be a situation where charging cannot be performed

Method used

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Embodiment approach 1

[0041] Hereinafter, this invention is demonstrated concretely based on drawing which shows the embodiment. figure 1 as well as figure 2 It is a schematic diagram for explaining the outline of the in-vehicle charging system of this embodiment. The in-vehicle charging system of the present embodiment is a system in which direct current is supplied to vehicles 1 such as electric vehicles or plug-in hybrid vehicles via charging lines 81 or 91 from the first charging device 80 or the second charging device 90 installed in a charging post or the like. voltage to charge the battery 2 mounted on the vehicle 1 .

[0042] In this embodiment, the first charging device 80 is a charging device adopting a first charging method (eg, CHAdeMO method), and the second charging device 90 is a charging device adopting a second charging method (eg, CSS method). Since the charging methods adopted by the first charging device 80 and the second charging device 90 are different, the front ends of th...

Embodiment approach 2

[0096] Figure 9 It is a block diagram showing the configuration of an on-vehicle charging system according to Embodiment 2. In the on-vehicle charging system according to the second embodiment, the signal cutoff relay 23 is not provided in the control signal transmission path from the first charge control unit 10 to the DC cutoff relay 13, and the DC cutoff relay 13 conducts only under the control of the first charge control unit 10. On / off switch. Therefore, converter 22 of charging control unit 202 according to Embodiment 2 does not have a function of controlling ON / OFF of signal cutoff relay 23 .

[0097] The on-vehicle charging system according to Embodiment 2 includes a backflow prevention diode 250 in the power supply path from the first socket 11 to the battery 2 . The anti-backflow diode 250 is provided on the power supply line 101 corresponding to DC+ among the two power supply lines 101 and 102 . The anti-backflow diode 250 is positively connected from the first ...

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Abstract

The present invention provides an on-vehicle charging system capable of charging a storage battery regardless of the charging method and capable of preventing abnormal current from being generated between the vehicle and a charging pile. The first charging control part (10) that controls charging through the first charging method communicates with the first charging device through the charging line connected to the first socket (11), (2) The DC cut-off relay (13) of the power supply path for supplying electric power is turned on to charge the storage battery (2). The charging control unit (20) relays communication between the second charging device and the first charging control unit (10) when it is determined that charging should be performed in the second charging method. The charge control unit (20) performs control to delay the timing of actually turning on the DC cutoff relay (13) relative to the timing of the first charge control unit (10) to turn on the DC cutoff relay (13).

Description

technical field [0001] The present invention relates to an in-vehicle charging system that controls charging a battery of a vehicle with electric power supplied from a charging device installed in a charging post or the like. Background technique [0002] A plug-in hybrid electric vehicle (PHEV: Plug-in Hybrid Electric Vehicle) using both an electric motor and an engine, and an electric vehicle (EV: Electric Vehicle) driven by an electric motor without an engine are gaining popularity. Vehicles such as plug-in hybrid vehicles and electric vehicles include a battery for storing electric power for driving an electric motor, and the battery is charged using an external charging station. [0003] As a charging method for a storage battery for driving a motor, there are AC charging and DC charging. As a method of DC charging, there are a CHAdeMO method and a CCS (Combined Charging System) method (or a combination (Combo) method). The charging pile according to the CHAdeMO metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00B60L3/00B60L3/04B60L53/60H01M10/44H01M10/48H04L12/40H01R31/06
CPCH01M10/44H01M10/48Y02T90/16B60L3/0046B60L3/04B60L53/60H02J7/0071H02J7/00034H02J2310/48Y02T90/12Y02T10/70Y02T10/7072Y02E60/10H01R31/065H01R2201/26H04L12/40013H04L2012/40215H04L2012/40273
Inventor 薮内靖弘
Owner AUTONETWORKS TECH LTD