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Electric Pump Control

A technology for control devices and electric pumps, applied in pump control, battery/fuel cell control devices, battery temperature control, etc., can solve the problem of power consumption of electric pumps and achieve the effect of suppressing power consumption

Active Publication Date: 2016-08-24
SUZUKI MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the device described in Patent Document 1 controls the driving of the electric pump according to the temperature of the cooling medium, so there is a problem that the cooling medium may be circulated at a flow rate larger than the flow rate corresponding to the cooling performance required by the electric drive system. , it is possible to consume electricity that the electric pump does not need to consume

Method used

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no. 1 Embodiment approach

[0066] Such as figure 1 As shown, the vehicle 1 equipped with the electric pump control device of the first embodiment of the present invention constitutes an electric vehicle, and includes an electric drive system 2 and an ECU (Electronic Control Unit) 3.

[0067] The electric drive system 2 is composed of a plurality of components including a drive motor 10 serving as a drive source of the vehicle 1, a drive circuit 11 that drives the drive motor 10, a rechargeable battery 12, and a charging circuit 13. The drive motor 10 converts electric power and rotational force into each other.

[0068] The drive motor 10 includes, for example, a stator, which forms a rotating magnetic field, and a rotor, which is arranged inside the stator, and has a plurality of permanent magnets embedded therein. The stator includes a stator core and a three-phase coil wound around the stator core.

[0069] In the drive motor 10 configured in this way, when three-phase AC power is supplied to the three-ph...

no. 2 Embodiment approach

[0113] The second embodiment of the present invention is different from the first embodiment of the present invention in the configuration of the electric drive system control units 20a to 20d and the program executed by the ECU 3. So like Figure 4 As shown, in this embodiment, the same reference numerals are attached to the same configurations as the first embodiment of the present invention, and detailed descriptions are omitted. In addition, the electric drive system control units 20a to 20d and the ECU 3 are denoted by the same reference numerals and will be described in detail below.

[0114] In this embodiment, compared with the first embodiment of the present invention, the cooling temperature sensor 18 is omitted. In addition, each of the electric drive system control units 20a to 20d controls the driving of each component, and respectively calculates the flow rate of the cooling medium required for each component.

[0115] Specifically, each electric drive system control...

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Abstract

The invention provides an electric pump control device ensuing a cooling performance of an electric driving system and preventing power consumption of the electric pump; the electric pump control device comprises the following structures: an electric driving system comprising a plurality of parts, wherein the parts comprise a driving motor, a driving circuit driving the driving motor, and a charging battery; an electric pump cycling a cooling medium in a cycle path formed to be passing the parts; and an ECU controlling flow value of the cooling medium cycling by the electric pump. The ECU controls the flow value (steps S4, S8 and S9) of the cooling medium according to a cooling medium temperature detected by a cooling temperature sensor and a driving state (step s3, s5) requested by an electric driving system control portion of the parts.

Description

Technical field [0001] The present invention relates to an electric pump control device, and more specifically, to an electric pump control device that controls an electric pump that circulates a cooling medium that regulates the temperature of an electric drive system of a vehicle. Background technique [0002] Conventionally, as a device for adjusting the temperature of the electric drive system of a vehicle, it is known to adjust the temperature of the cooling water by controlling the on / off of the electric pump that circulates the cooling water according to the temperature of the cooling water of the electric drive system for cooling the electric motor, etc. Device. [0003] However, when the device that controls the on / off of the electric pump turns on the electric pump, the cooling water circulates at the maximum flow rate. Therefore, there is a problem that the power consumption of the electric pump increases. [0004] As a device to solve this problem, for example, Patent Do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06
CPCB60L58/26F01P7/164F01P2050/24H01M10/613H01M10/625H01M10/633H01M10/66H01M2220/20Y02E60/10Y02T10/70
Inventor 滨井笃司
Owner SUZUKI MOTOR CORP