JPH03273900A - Generator starter - Google Patents

Abstract

PURPOSE:To use high voltage and cope with various values of source voltage by changing over and controlling the output power of a generator-motor from a DC output mode, in which first and second batteries can be charged at a time or one by one, to an AC output mode, in which AC power can be supplied to an AC load, and vice versa. CONSTITUTION:An engine E is started with a generator-motor by selecting the electric mode of a key switch KEY SW in a switching part C and transmits the output of the generatormotor in a DC output mode or an AC output mode selected with a DC/AC changeover switch SW. In a controlling part D, when the DC/AC changeover switch SW selects DC, DC output is transmitted to batteries BAT1 and BAT2 and DC loads L1, L2, and L3 and, when the DC/AC changeover switch SW selects AC, AC power is supplied to an AC load LAC.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a single power generation starting device, and in particular, the power generation starting device according to the present invention is useful as a starting device for a vehicle engine and a multi-voltage power supply device for a vehicle load.

[Prior Art] A power supply device installed in a vehicle, etc. is equipped with two batteries of the same rated voltage, and these are connected in series, so that the voltage of the battery stage and the voltage of the second stage can be used respectively. Voltage type DC power supplies are known. This is because the efficiency of the generator driven by the engine is higher when the voltage is higher, and it supplies power to the load at this higher voltage.

Or it is simply because they want to charge the battery and increase the efficiency of the vehicle as much as possible.

U.S. Pat. No. 4,743,830 discloses a power supply of this type, which includes two batteries, both of the same rating of 12V, which batteries:
Normally, it is charged in series by a generator via a rectifier,
When the voltages of both batteries become unbalanced, the battery having a higher voltage value temporarily charges the other battery to correct the imbalance in battery voltages.

On the other hand, in response to the diversification of lifestyles in recent years, in addition to the use of DC power supplies with two types of voltage values as mentioned above, household AC
There is also a desire for a vehicle power supply device that can supply power to electrical equipment rated at 100V. In this case, it has been proposed to adopt a system in which an AC power supply system is provided independently of the conventional DC power supply system.

[Problem to be Solved by the Invention] However, when a vehicle is equipped with two power supply systems as described above, it is contrary to the strong demand for size reduction and weight reduction in vehicles. There is a problem with this.

Therefore, in view of the above-mentioned trends in the prior art in vehicles, etc., the present invention provides a power source that is capable of adopting a high voltage in order to increase the efficiency of the generator as much as possible, and that is also capable of responding to the diversification of power supply voltages requested by consumers. The purpose is to provide equipment.

Furthermore, in providing the above power supply device, the present invention eliminates duplication of devices as much as possible and makes the entire device compact.
The purpose is to provide the system in a format that can contribute to reducing vehicle weight.

[Means for Solving the Problems] The object of the present invention is to provide a generator motor A that includes a field rotor, a stator having stator windings, and rotor position detection means.

The output current of the stator winding of the generator motor A is manually controlled,
Rectifier stack B capable of outputting direct current.

First and second batteries BAT, BAT2 connected in series with each other and capable of supplying output to a load either in conjunction or individually
゜Electric mode, DC output mode, AC output mode,
A selectable switching means C1 controls the generator motor between an electric mode in which the engine is started in response to each selection signal from the switching means C and a power generation mode in which the engine is driven.

In the power generation mode, the output γ of the generator motor is changed between a DC output mode in which the first and second batteries can be charged simultaneously or individually, and an AC output mode in which AC power can be supplied to an AC load. A control section that switches and controls the force.

This is achieved by a power generation starter characterized by comprising:

Claims (4)

[Claims] (1) A generator motor A comprising a field rotor, a stator having a stator winding, and rotor position detection means; an output current of the stator winding of the generator motor A is input;
Rectifier stack B capable of outputting direct current; first and second batteries BAT_1, BAT connected in series with each other and capable of supplying output to a load either in conjunction or individually;
＿２. Electric mode, DC output mode, AC output mode,
a switching means C capable of selecting, in response to each selection signal in the switching means C, controlling the generator motor between an electric mode in which the engine is started and a power generation mode in which the engine is driven; In the power generation mode, the output power of the generator motor is changed between a DC output mode in which the first and second batteries can be charged simultaneously or individually, and an AC output mode in which AC power can be supplied to an AC load. Control unit D that switches and controls
A power generation starting device characterized by comprising the following. (2) The power generation starting device according to claim 1, further comprising a Δ-Y switch F that switches the connection of the stator winding. (3) The control unit D is configured to change the timing between a mode in which the first and second batteries are charged in series, a mode in which the first battery is charged, and a mode in which the second battery is charged in the DC output mode. 3. The power generation starting device according to claim 1, further comprising means for controlling switching. (4) The power generation starting device according to claim 3, wherein in the control unit D, the power transistor for switching the stator current of the generator motor A is composed of five power transistors.