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Fuel cell vehicle

A fuel cell vehicle, fuel cell technology, applied in battery/fuel cell control devices, electric vehicles, vehicle components, etc., can solve problems such as reduced driving performance

Pending Publication Date: 2021-07-09
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the state of charge (SOC: State Of Charge) of the power storage device decreases when the system starts without external charging after the FCV system stops, the output of the FC is added to the output of the power storage device to obtain The output of the system is limited after the start of driving, and thus the driving performance may be reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0030] figure 1 is a diagram showing the overall configuration of FCV1 according to the embodiment of the present disclosure. refer to figure 1 FCV1 includes a motor generator (hereinafter referred to as “MG (Motor Generator)”) 10 , an inverter 12 , an FC system 20 , a hydrogen tank 28 , a supply valve 30 , an air filter (air filter) 32 , and a compressor 34 .

[0031] MG10 is an AC rotating electrical machine, for example, a three-phase AC synchronous motor in which a permanent magnet is embedded in a rotor. MG 10 is driven by inverter 12 to generate rotational driving force. The driving force generated by MG 10 is transmitted to drive wheels (not shown). During braking of FCV1, etc., MG10 operates as a generator to generate electricity. Electric power generated by MG 10 is rectified by inverter 12 and stored in battery 40 .

[0032] Inverter 12 is provided between power line 70 and MG 10 , and drives MG 10 based on a drive signal from MG-ECU 66 (described later). Inver...

Deformed example 1

[0083] It is also possible to stop the FC when an operation for performing external charging is performed while the FC charging is being performed when the FC charging is started because the external charging is not performed although the SOC is lower than the threshold value S1 at Ready-off. Charging while performing external charging. In this way, when external charging is requested during execution of FC charging, it is possible to suppress a decrease in the remaining fuel level by switching from FC charging to external charging.

[0084] Figure 5 It is a flowchart showing an example of the procedure of processing executed by FDC-ECU 60 at the time of Ready-off in Modification 1. FIG. This flowchart is the same as that described in Embodiment 1 Figure 4 the corresponding flowchart.

[0085] refer to Figure 5 , the processing of steps S110-S170 are respectively the same as Figure 4 The processing of steps S10 to S70 is the same, so the description will not be repeat...

Deformed example 2

[0091] Even when the SOC is lower than the threshold S1 and the operation for performing external charging is performed at the time of Ready-off, it may be determined that the electricity charge for external charging is relatively expensive and the electric charge for external charging is higher than the cost of fuel. In this case, external charging is not performed but FC charging is performed. Thereby, the energy cost (charging cost) for suppressing the reduction of running performance after Ready-on can be suppressed.

[0092] Figure 6 It is a flowchart showing an example of the procedure of processing executed by FDC-ECU 60 at the time of Ready-off in Modification 2. This flowchart is also described in Embodiment 1 Figure 4 the corresponding flowchart.

[0093] refer to Figure 6 , the processing of steps S210-S270 is respectively the same as Figure 4 The processing of steps S10 to S70 is the same, so the description will not be repeated. Furthermore, in Modificat...

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Abstract

The invention relates to a fuel cell vehicle. An FCV(1) includes an FC system(20) and a battery(40). The FC system (20) includes an FC stack (22)and a boost converter (24)that adjusts output from the FC stack(22). When a prescribed operation to carry out external charging with a power supply outside the vehicle is not performed for a prescribed time period after system stop (Ready-off) of the FCV (1)under such a condition that an SOC of the battery(40) is lower than a threshold value at the time of system stop, an FDC-ECU (60) controls the boost converter(24) to carry out FC charging by the FC system(20).

Description

technical field [0001] The present disclosure relates to fuel cell vehicles. Background technique [0002] International Publication No. 2011 / 004493 discloses a fuel cell vehicle equipped with a fuel cell (hereinafter, the fuel cell is referred to as "FC (Fuel Cell)", and the fuel cell vehicle is referred to as "FCV (Fuel Cell Vehicle)". ). This FCV has an FC stack and batteries. The battery functions as a storage source of surplus electric power, a storage source of regenerative energy during regenerative braking, and an energy buffer during load fluctuations accompanying acceleration or deceleration of the vehicle. [0003] A so-called plug-in FCV that can charge the power storage device through a power source outside the vehicle is being studied (hereinafter, the power source outside the vehicle is also referred to as "external power source", and the charging of the power storage device through the external power source is also referred to as "external power source"). ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L50/70B60L50/60B60L58/30B60L58/12
CPCB60L50/70B60L50/60B60L58/30B60L58/12Y02T10/70Y02T10/7072Y02T90/14Y02T90/40B60L50/75B60L58/40B60L58/13H02J1/106H02J7/1438H02J7/1492H02J7/34H02J2207/40H02J2310/48Y02T10/92Y02T90/12Y02E60/50B60L53/00H02J7/0048
Inventor 市川真士
Owner TOYOTA JIDOSHA KK