JP2018061370A5

JP2018061370A5 -

Info

Publication number: JP2018061370A5
Application number: JP2016198060A
Authority: JP
Filing date: 2016-10-06
Publication date: 2019-01-24
Anticipated expiration: 2036-10-06

Description

本発明の電源システム制御装置は、リレー制御部（５３）と、充電状態制御部（５３）と、を備える。
リレー制御部は、車両（９０、１９０）の駆動源である主機モータ（３）に電力を供給する第１電源（１０）からの給電の許容または禁止を切り替えるリレー部（１５）を制御する。 The power supply system control device of the present invention includes a relay control unit (53) and a charge state control unit (53).
Relay control unit controls the vehicle relay unit for switching allowable or prohibition of power feeding from the first power source (10) supplying power to the main motor (3) is a drive source of (90,190) (15).

充電状態制御部は、第２電源（４２）の充電状態を制御する。第２電源は、第１電源と主機モータとの間に接続され、負荷（４５）に電力を供給する。
充電状態制御部は、リレー部の遮断を要する異常確定前であって、リレー部を遮断する可能性があるリレーオフ準備段階において、第２電源の充電量を減少させる充電量低減制御を行う。充電状態制御部は、第１電源のＳＯＣに応じ、充電量低減制御を切り替える。 The charge state control unit controls the charge state of the second power source (42). The second power source is connected between the first power source and the main motor, and supplies power to the load (45).
The charge state control unit performs charge amount reduction control for reducing the charge amount of the second power source in a relay-off preparation stage before the abnormality is determined to be interrupted and the relay unit may be interrupted. The charge state control unit switches the charge amount reduction control according to the SOC of the first power source.

Claims

Relay control unit (53) for controlling the relay unit (15) for switching permission or prohibition of power feeding from the first power supply (10) that supplies power to the main motor (3) that is a power source of the vehicle (90, 190). When,
A charge state control unit (51) for controlling a charge state of a second power source (42) connected between the first power source and the main motor and supplying power to a load (45);
With
The charge state control unit is a charge amount reduction control that reduces the charge amount of the second power source in a relay-off preparation stage before the abnormality determination that requires the relay unit to be interrupted and in which the relay unit may be interrupted. the stomach line,
The power supply system control apparatus which switches the said charge amount reduction control according to SOC of a said 1st power supply .

  The charging state control unit
  When the SOC of the first power source is equal to or less than a determination threshold, the first power source is charged with the power of the second power source as the charge amount reduction control,
  2. The power supply system control device according to claim 1, wherein when the SOC of the first power supply is larger than the determination threshold, the load is driven and power of the second power supply is consumed as the charge amount reduction control.

The second power source is connected between the first power source and the main motor via a DCDC converter (41).
The power supply system control device according to claim 1, wherein the charge state control unit drives the DCDC converter in the charge amount reduction control.

The power supply system control device according to any one of claims 1 to 3 , wherein the charge state control unit performs the charge amount reduction control when the main motor is being regenerated.

The power supply system control apparatus according to any one of claims 1 to 4 , wherein the charge state control unit performs the charge amount reduction control when a charge amount of the second power source is equal to or greater than a predetermined amount.

The charge state control unit reduces the charge amount when the vehicle speed is equal to or less than a vehicle speed determination value and the accelerator opening is decreased or the accelerator pedal is in an OFF state and is in the relay-off preparation stage. The power supply system control apparatus as described in any one of Claims 1-5 which performs control.

When the voltage of the first power source is lower than the low-voltage relay off preparation value set to a value higher than the low-voltage abnormality determination threshold, the charge state control unit determines that the relay-off preparation stage is in effect, and the charge amount reduction control The power supply system control apparatus according to any one of claims 1 to 6, wherein:

The power supply system control device according to any one of claims 1 to 7, wherein the charge state control unit determines whether or not the relay-off preparation stage is in accordance with an external environment of the vehicle.

The power supply system control device according to claim 8, wherein when the vehicle is traveling on a rough road, the charging state control unit determines that it is in the relay-off preparation stage and performs the charge amount reduction control.