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Drive system, transporter, and control method performed by drive system

A technology for a driving device and a driving part, which is applied in the directions of motor control, motor generator control, AC motor control, etc., can solve problems such as deterioration and inability to use power storage devices properly, and achieve the effect of preventing deterioration.

Active Publication Date: 2017-08-11
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no description about the control of the converter before and after the control of the opening and closing of the relay.
In particular, in a drive device including a plurality of power storage devices with different characteristics, in order to maximize the use of the characteristics of each power storage device, the converter is controlled so that each power storage device performs different charging and discharging. If the converter is not properly controlled before and after the switching of the relay that becomes unusable for the power storage device, not only the normal power storage device cannot be used properly, but deterioration may also be accelerated

Method used

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  • Drive system, transporter, and control method performed by drive system
  • Drive system, transporter, and control method performed by drive system
  • Drive system, transporter, and control method performed by drive system

Examples

Experimental program
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no. 1 approach

[0085] figure 1 It is a block diagram showing the internal structure of the electric vehicle of the first embodiment. figure 1 The illustrated 1MOT electric vehicle includes a motor generator (MG) 101, a high-capacity battery ES-E, a high-power battery ES-P, a VCU (Voltage Control Unit) 103, a PDU (Power Drive Unit) 105, and a voltage sensor 107p. , 107e, current sensors 109p, 109e, temperature sensors 111p, 111e, switch unit 113, and ECU (Electronic Control Unit) 115. It should be noted, figure 1 The thick solid line in the diagram indicates the mechanical connection, the double dashed line indicates the power wiring, and the thin solid line indicates the control signal.

[0086] Motor generator 101 is driven by electric power obtained from at least one of high-capacity storage battery ES-E and high-power storage battery ES-P, and generates motive power for running the electric vehicle. The torque generated by the motor generator 101 is transmitted to the drive wheels W th...

no. 2 approach

[0115] Figure 8 It is a block diagram showing the internal structure of the electric vehicle of the second embodiment. in addition, Figure 9 It is a circuit diagram showing the relationship between a high-capacity storage battery, a high-power storage battery, a VCU, a PDU, and a motor generator in the second embodiment. The electric vehicle of the second embodiment differs from the electric vehicle of the first embodiment in that VCU 203 that converts the voltage of the high-capacity storage battery ES-E is provided. The same as the first embodiment except this point, regarding Figure 8 and Figure 9 For the components shown, the same or equivalent parts as those in the first embodiment are given the same or equivalent symbols, and descriptions thereof are simplified or omitted.

[0116] VCU203 boosts the output voltage of the high-capacity battery ES-E in a DC state. In addition, VCU 203 steps down the electric power generated by motor generator 101 and converted to ...

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PUM

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Abstract

A drive system includes a first energy storage, a second energy storage, a voltage transformer, a drive apparatus, a detector, and circuitry. The first energy storage outputs a first voltage. The second energy storage outputs a second voltage different from the first voltage. The voltage transformer transforms at least one of the first voltage and the second voltage. The drive apparatus is driven with power supplied from at least one of the first energy storage and the second energy storage. The detector detects a fault in at least one of the first energy storage and the second energy storage. The circuitry is configured to control the voltage transformer in a first control mode or in a second control mode.

Description

technical field [0001] The present invention relates to a drive device, a conveying device, and a control method provided with two accumulators. Background technique [0002] Patent Document 1 discloses a vehicle including: three power storage devices; a drive device configured to generate driving force using electric power from the three power storage devices; and three relays that communicate with the three power storage devices. The devices are provided in correspondence with each other, and are used to switch the supply and cutoff of electric power from the three power storage devices. The ECU of the vehicle detects a failure of the three power storage devices, and controls the three relays in accordance with the detected failure status of the power storage devices so as to change the connection state between the drive unit and the three power storage devices. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L11/18
CPCB60L3/0046B60L58/10B60L58/20B60L50/51H02P27/06H02P29/0241H02P2201/09Y02T10/70H02P29/024
Inventor 海野良太岛田昌浩
Owner HONDA MOTOR CO LTD