Title:
DIAGNOSIS SYSTEM FOR DIRECT-CURRENT CHARGING RELAY OF VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/145397
Kind Code:
A1
Abstract:
A diagnosis system for a direct-current charging relay of a vehicle, comprising a controller (1), two resistor groups R1 and R2, and a switch S, wherein the two resistor groups R1 and R2 are bridged in series between direct-current charging high-voltage lines of the vehicle; the resistor group R1 consists of two sub-resistors connected in series, and the controller (1) can measure, by means of a first voltage detection port, a voltage V1 at a common terminal of the two sub-resistors connected in series which constitute the resistor group R1; the resistor group R2 consists of two sub-resistors connected in series, and the controller (1) can measure, by means of a second voltage detection port, a voltage V2 at the common terminal of the two sub-resistors connected in series which constitute the resistor group R2; and the controller (1) can execute a diagnosis operation on the basis of measurement values of the voltages V1 and V2. The diagnosis system has a high diagnosis efficiency and low costs.
Inventors:
ZHOU YI (CN)
Application Number:
PCT/CN2017/091805
Publication Date:
August 16, 2018
Filing Date:
July 05, 2017
Export Citation:
Assignee:
NIO CO LTD (CN)
International Classes:
G01R31/327; H02J7/00
Foreign References:
| CN106908719A | 2017-06-30 | |||
| CN105988082A | 2016-10-05 | |||
| CN102756637A | 2012-10-31 | |||
| CN105137336A | 2015-12-09 | |||
| CN104750000A | 2015-07-01 | |||
| JP2016080351A | 2016-05-16 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (HK) LTD. (CN)
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