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Power supply system, transmission equipment, and power transmission method

A technology of power supply and power transmission, applied in the direction of electric braking system, load supply circuit, control system, etc., can solve the problem of unable to output power, achieve the effect of ensuring stability and suppressing deterioration

Active Publication Date: 2020-04-21
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for example, in a situation where the remaining capacity of the high-output type power storage device is reduced, when the required output exceeds the B2 threshold value, the situation that the required electric power cannot be output from the high-power type power storage device tends to occur.

Method used

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  • Power supply system, transmission equipment, and power transmission method
  • Power supply system, transmission equipment, and power transmission method
  • Power supply system, transmission equipment, and power transmission method

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no. 1 approach

[0139] Below, refer to Figure 1 to Figure 19 , the first embodiment of the present invention will be described. refer to figure 1 , The power supply system 1 of the present embodiment is a system that supplies power to an electric motor 100 as an example of an electric load.

[0140] This power supply system 1 is mounted on a conveyance device using the electric motor 100 as a propulsion generating source, such as an electric vehicle (not shown), in an example of the present embodiment. In this case, electric motor 100 can perform regenerative operation in which kinetic energy of an electric vehicle (hereinafter, simply referred to as a vehicle) is used to output regenerative power, in addition to power operation in which electric power is supplied to generate driving force.

[0141] The power supply system 1 includes a first power storage device 2 and a second power storage device 3 as power sources, a power transmission path 4 arranged between an electric motor 100 , the ...

no. 2 approach

[0380] Next, refer to Figure 20 and Figure 21 , the second embodiment of the present invention will be described. It should be noted that this embodiment differs from the first embodiment only in the control process during regenerative operation of the electric motor 100 . Therefore, description of the same items as those in the first embodiment will be omitted.

[0381] In the present embodiment, the control processing of the electric power transmission control unit 41 during regenerative operation of the electric motor 100 is performed in a predetermined control processing cycle such as Figure 20 Execute as shown in the flowchart.

[0382] Specifically, the electric power transmission control unit 41 acquires the detected value of the second remaining capacity SOC2 and the requested regeneration amount G_dmd of the electric motor 100 in STEP 61 . The processing of this STEP61 is the same as the processing of STEP51 of the first embodiment.

[0383] Next, in STEP 62 ,...

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Abstract

The present invention provides an electric power system capable of supplying power to electric loads from two power storage devices with appropriate load distribution. The control device (5) of the power supply system (1) controls the power transmission circuit unit (11) so that the output of the first power storage device (2) and the second power storage device (3) is compared with the output of the electric load (100). The burden form of the requested output is changed to a plurality of types classified according to the remaining capacity of the second power storage device (3).

Description

technical field [0001] The present invention relates to a power supply system for supplying power to electric loads such as electric motors using two power storage devices. Background technique [0002] Conventionally, as such a power supply system, for example, a system disclosed in Patent Document 1 is known. Patent Document 1 proposes a system using two power storage devices, a high-capacity type power storage device with a relatively large capacity and a high-output type power storage device with a relatively high upper limit value of outputtable electric power. , to supply power to the electric motor of the vehicle. [0003] In this system, depending on whether or not the requested output to the two power storage devices is equal to or less than a predetermined threshold value, the load distribution of the output of each of the two power storage devices is determined, and one of the two power storage devices Or both perform power supply to the electric load (electric ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/36B60L58/18B60L50/13
CPCB60L53/00H02J7/0036H02J7/0063H02J7/0048H02P27/14H02P3/14Y02T10/7072Y02T90/14B60L7/16B60L2240/545B60L2240/547B60L2240/549B60L50/15B60L53/20B60L58/16B60L58/13B60L58/20Y02T10/64Y02T10/70Y02T10/92Y02T90/12H02M7/44H02P27/08
Inventor 小熊宏和泷泽大二郎
Owner HONDA MOTOR CO LTD