Unlock instant, AI-driven research and patent intelligence for your innovation.

Power Supply System, Transportation Device, And Power Transmission Method

A technology of power supply and power transmission, which is applied in the direction of electric braking system, load supply circuit, control system, etc., can solve the problem that the deterioration of the power storage device is easy to progress rapidly, so as to ensure stability, suppress deterioration, and improve stability Effect

Active Publication Date: 2017-06-23
HONDA MOTOR CO LTD
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Here, when a high-capacity power storage device is usually discharged with frequent output fluctuations or high-rate discharge, the deterioration of the power storage device tends to progress rapidly.
[0012] Therefore, in the system of Patent Document 1, the deterioration of the high-capacity power storage device may progress prematurely.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power Supply System, Transportation Device, And Power Transmission Method
  • Power Supply System, Transportation Device, And Power Transmission Method
  • Power Supply System, Transportation Device, And Power Transmission Method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0093] 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.

[0094] 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.

[0095] 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

[0334] 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.

[0335] 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.

[0336] 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.

[0337] Next, in STEP 62 ,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A power supply system includes a first energy storage, a second energy storage, a power transmission circuit, and circuitry. The first energy storage outputs first output power to an electric load. The second energy storage outputs second output power to the electric load. The circuitry is configured to control the power transmission circuit to supply power from the first energy storage or from both of the first energy storage and the second energy storage to the electric load based on a demand power such that a first change in the first output power in accordance with a change in the demand power is lower than a second change in the second output power in accordance with the change in the demand power or a third change in an input power of the second energy storage in accordance with the change in the demand power.

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 power storage device with a relatively large capacity and a high-output power storage device with a relatively high upper limit of outputtable electric power. , to supply power to the electric motor of the vehicle. [0003] In this system, the SOC (State Of Charge) indicating the remaining capacity of each of the two power storage devices is adjusted by changing the transmission and reception rate of the electric power transferred between the two power storage devices according to the vehicle speed. [0004] prior art literature [0005] patent documents [0006] Patent Document 1...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02J7/00B60L11/18B60L50/13B60L50/16
CPCB60L53/00H02J7/0036H02J7/0063H02J7/0048B60L7/14B60L2210/10B60L2240/527B60L2240/529B60L2240/545B60L2240/547B60L2240/549B60L50/51B60L58/12B60L58/20B60L58/21B60L58/25H02M7/53875Y02T10/70Y02T10/7072Y02T10/72Y02T90/14H02M7/44H02P4/00
Inventor 小熊宏和泷泽大二郎海野良太
Owner HONDA MOTOR CO LTD