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Power supply control device, vehicle, and power supply control method

一种电源控制装置、车辆的技术，应用在控制装置、电池/燃料电池控制装置、用电装置等方向，能够解决无法充分减小高电压系统电压变动、电压偏离容许范围等问题

Inactive Publication Date: 2017-07-07
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the technique of improving the responsiveness of the feedback control of the throttle opening disclosed in JP-A-2013-103514, the voltage variation of such a high-voltage system cannot be sufficiently reduced, and the voltage may deviate from the allowable range.

Method used

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  • Power supply control device, vehicle, and power supply control method
  • Power supply control device, vehicle, and power supply control method
  • Power supply control device, vehicle, and power supply control method

Examples

Experimental program
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Effect test

no. 1 approach

[0026] figure 1 It is an explanatory diagram showing the vehicle 10 of the first embodiment. The vehicle 10 includes an engine 100, a generator 110, a high-voltage auxiliary machine 120, a high-voltage secondary battery 140, a battery sensor 142, a relay 144, a DC-DC converter 150, a high-voltage wiring 160, a low-voltage auxiliary machine 170, a low-voltage Voltage secondary battery 180 , low voltage wiring 190 , power control device 200 , transmission 210 , power splitter 220 , drive shaft 230 , and drive wheels 240 .

[0027]In the first embodiment, an internal combustion engine is used as the engine 100 . The generator 110 is a generator connected to the rotating shaft 101 of the engine 100 via a power transmission mechanism 102 such as a belt or gears, and generates electricity by the rotation of the engine 100 . The high-voltage auxiliary machine 120 is an auxiliary machine connected to the high-voltage line 160 and operated at a relatively high voltage. The high-volt...

no. 2 approach

[0052] Figure 5 is a control flowchart of the second embodiment. The action of step S135, S155, S165 and figure 2 The flow chart of the first embodiment shown is different, and the operation of other steps is the same as that of the first embodiment. In step S165, the power control device 200 except figure 2 In addition to the processing of step S160, the control target value of the voltage on the low-voltage wiring 190 side of the DC-DC converter 150 is set to a predetermined value Vpb. This control target value Vpb is set, for example, to a value equal to the open-circuit voltage of the low-voltage secondary battery 180 . In step S135, the power source control device 200 sets the control target value of the voltage on the low-voltage wiring 190 side of the DC-DC converter 150 to a value larger than Vpb (Vpb+Vdc1) in addition to the processing of step S130. ). Here, Vdc1 is determined such that Vpb+Vdc1 is equal to or less than the upper limit of the allowable voltage...

no. 3 approach

[0056] Image 6 is a control flowchart of the third embodiment. In addition, the control processing of the third embodiment can be compared with that of the first embodiment figure 2 The control process of the second embodiment or the Figure 5 The control processing is executed in parallel. In steps S200 and S205 , as in steps S100 and S105 of the first embodiment, when the high-voltage secondary battery 140 fails, the power supply control device 200 is shut off by the relay 155 . In step S206, the power supply control device 200 acquires the first auxiliary machine 122 among the high-voltage auxiliary machines 120 ( figure 1 ) power consumption Ph1. In addition, in the third embodiment, it is preferable to provide two power meters, a first power meter for measuring the power consumption of the first auxiliary machine 122 and a second power meter for measuring the power consumption of the second auxiliary machine 130, as Power meter 121 for high voltage auxiliary machin...

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Abstract

The invention provides a power supply control device, a vehicle, and a power supply control method. (i) If a total power consumption of the high- and low-voltage auxiliary machinery is greater than a first reference value when the high-voltage secondary battery is disconnected from the high-voltage wiring by the relay, the power supply control apparatus sets a lower value to a target control value of the generator output voltage, compared with the total power consumption is less than or equal to the first reference value. (ii) If the total power consumption of the high- and low-voltage auxiliary machinery is less than a second reference value that is less than or equal to the first reference value when the high-voltage secondary battery is disconnected from the high-voltage wiring by the relay, the power supply control apparatus sets a higher value to the target control value of the generator output voltage, compared with the total power consumption is more than or equal to the second reference value.

Description

[0001] This application claims the priority based on the Japanese application number 2015-186813 for which it applied on September 24, 2015, All the content of the indication is taken in this application by reference. technical field [0002] The present disclosure relates to a power control device, a vehicle, and a control method of a power supply. Background technique [0003] Japanese Patent Application Laid-Open No. 2013-103514 describes a vehicle that performs "battery-free travel control" that runs with the battery disconnected from the motor and generator when the battery of the hybrid vehicle fails. In this battery-less running control, the throttle opening of the engine is feedback-controlled so that the engine rotation speed becomes a target value, and the generator generates power. The electric motor is driven by the power generated by the generator to drive the vehicle. Japanese Patent Application Laid-Open No. 2013-103514 also discloses a technique of improving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/02B60L11/02B60L11/18B60L50/10
CPCB60L50/50B60L50/10B60R16/02B60L2240/44B60L3/04B60L2210/10B60L2240/427B60L58/10B60L58/20B60L1/003B60L58/12Y02T10/64Y02T10/70Y02T10/72B60L3/0046H02P9/10
Inventor 丰良幸男
Owner TOYOTA JIDOSHA KK
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