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Power supply control apparatus for electric vehicle

A technology for power supply and electric vehicles, applied in battery/fuel cell control devices, power consumption devices, control devices, etc., can solve problems such as poor marketability and poor quietness, and achieve the effect of ensuring comfort

Active Publication Date: 2013-03-27
SUZUKI MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] As described above, compared to HEV mode 1, it can be said that HEV mode 2 is a mode that is less quiet when the vehicle is stopped or running (accelerating) at a low speed and thus less marketable

Method used

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  • Power supply control apparatus for electric vehicle
  • Power supply control apparatus for electric vehicle
  • Power supply control apparatus for electric vehicle

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Experimental program
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Embodiment Construction

[0045] The present invention promotes the continuation of the running mode in which the engine runs to charge the battery when the speed is not lower than a predetermined vehicle speed by changing the starting vehicle speed of engine start in HEV mode 1 according to the average value of the vehicle speed or the amount of decrease in SOC, and thereby suppresses the charge to the engine. The driving mode switching that is always running regardless of the vehicle speed achieves the purpose of ensuring the comfort in the cabin.

[0046] Figure 1 to Figure 6 Examples of the present invention are shown.

[0047] exist figure 2In , reference numeral 1 denotes an extended-range electric vehicle (plug-in series hybrid vehicle) (hereinafter referred to as "vehicle"). The vehicle 1 includes an internal combustion engine (hereinafter referred to as "engine") 2, a generator 3 as a generator motor driven by the engine 2, and a storage battery 4 that stores electric energy output from th...

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PUM

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Abstract

A power supply control apparatus for an electric vehicle has its object to promote the continuation of a drive mode in which an engine is operated to charge a battery when a vehicle speed is not less than a predetermined vehicle speed, and suppress the transition to a drive mode in which the engine operates all the time regardless of the vehicle speed, thereby ensuing comfort in the vehicle compartment. A control unit (6) lowers a vehicle speed for starting engine activation (Vst) in an HEV mode 1 as an average value of vehicle speed (Vave) is smaller than a predetermined average value of vehicle speed (Vave-th), or a decrease amount of SOC of a battery (4) is not less than a predetermined amount and as the decrease amount thereof becomes larger.

Description

technical field [0001] The present invention relates to a power supply control device for an electric vehicle, in particular to a power supply control device for an electric vehicle that controls the operation mode of an extended-range electric vehicle (plug-in series hybrid vehicle). Background technique [0002] The operation modes of extended-range electric vehicles are roughly divided into two types: "EV mode", in which the electric power charged from the outside to the storage battery is used for driving; Electricity generated by an engine (hereinafter referred to as "engine") and a generator as a generator motor while controlling the SOC (State of Charge) of the remaining battery capacity as a battery to a predetermined control target value (SOC-HEV) to drive. [0003] "HEV mode" is further divided into: "HEV mode 1" of idle stop, in which the engine is stopped when the vehicle speed is zero or low; When SOC-H12) is below, the engine keeps running without idling stop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/12B60L3/12B60L50/15
CPCY02T10/6286Y02T10/6217Y02T10/7044B60L11/1816Y02T90/14Y02T90/121B60L2240/12Y02T10/7005B60W20/00B60W10/06B60L11/123B60L11/1862Y02T10/705Y02T10/7077Y02T10/7088B60W10/08Y02T10/7072B60L53/14B60L50/61B60L58/13Y02T10/62Y02T10/70B60W2520/10B60W20/13
Inventor 古田敏之
Owner SUZUKI MOTOR CORP