JP2002044806A - Charging system for electric vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric vehicle which can charge the battery by utilizing wind pressure and hydraulic pressure produced by running for the purpose of decreasing battery depletion. SOLUTION: This vehicle has a main battery 8, a battery 10 for auxiliary equipment, a wind-turbine generator 5 to charge the above batteries utilizing wind pressure, a switch system 9 to switch to the above main battery power or to the generator power to obtain power for the drive motor, the drive motor 31 to propel the front and/or rear wheels, and starter generators 23, 24 driven at start using the battery 10 for the auxiliary equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging system for an electric vehicle, and more particularly, to a system having a wind power generator and a hydraulic power generator.

[0002]

2. Description of the Related Art An electric vehicle driven by a motor has attracted attention as a clean vehicle that does not emit exhaust gas.
Currently being commercialized, what is actually running in town is a hybrid car, which is driven by a motor instead of an engine when starting and running at low speed (series hybrid system), and assists the motor in normal driving It is driven by the engine while getting. When accelerating at full throttle, power is also supplied from the battery and the output of the motor increases, so that the load on the engine is reduced (parallel hybrid system).

[0003] In the case of an electric vehicle, the distance that can be traveled by one charge is limited, so that the vehicle must be charged frequently. Therefore, when the electric vehicle goes down a hill, a motor is used as a generator. And return that energy to the battery.

[0004]

As described above, although some of the consumed energy is fed back to the battery to suppress the consumption of energy, it is not sufficient yet, and more energy is consumed. There is a long-awaited need to control wear. SUMMARY OF THE INVENTION The present invention has been made in order to meet such a demand, and it is possible to charge a battery by using wind power generated during traveling and hydraulic power, thereby suppressing battery consumption. It is an object to provide a system.

[0005]

According to the present invention, a main battery and an auxiliary battery, a wind power generator for charging each of the batteries by running wind, and switching between the main battery side power source and the generator side power source are provided. A distributing device that uses any of them as a power source of the driving motor, a driving motor that is driven by electric power supplied through the distributing device to rotationally drive a front wheel and / or a rear wheel, and the accessory battery The above problem is solved by a charging system for an electric vehicle, comprising: a starting power generation unit that is driven at the time of starting by using the power supply as a power source.

[0006]

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a configuration diagram of a system according to the present invention. In the drawing, reference numerals 1 and 2 denote impellers, which are installed in a wind tunnel 3 formed at a front end of a vehicle, and are installed in the wind tunnel 3 as the vehicle travels at high speed. It is driven to rotate by the blowing wind. The rotation of the impellers 1 and 2 is transmitted to the input shaft of the wind power generator 5 via a winding means such as a belt 4, so that the wind power generator 5 is continuously driven while the vehicle is running.

Reference numerals 15 and 16 denote hydroelectric generators, which are shown in FIGS.
Is a diagram showing the configuration. As shown there,
The hydroelectric generators 15 and 16 are installed on a water tank 17, and a driven gear 18 fixed to their input shafts
7 meshes with a drive gear 19 fixed to a water wheel shaft protruding above. A water wheel 20 is provided at an upper portion in the water tank 17 so as to rotate in a horizontal direction, and the drive gear 19 is fixed to a rotation shaft thereof.

[0008] Outside the water tank 17, the hydraulic pump 2
1 and an electric motor 22 for driving them. A suction hose 23 extending from the lower part of the water tank 17 is connected to a water inlet side of the hydrostatic pump 21, and one or more pressure-resistant hoses 24 are connected to a water outlet side thereof. The distal end of the pressure-resistant hose 24 has an injection path 25 that opens toward the waterwheel 20.
Connected to.

FIG. 3 shows the inner wall of the water turbine installation portion of the water tank 17, and preferably has a downwardly curved groove 26 formed so as to improve the drainage of the water. Also,
In order to stabilize the rotation of the water wheel 20, it is preferable to attach a flywheel 27 to the water wheel 20 (see FIG. 4). Note that a coolant liquid for a radiator is typically used as the water stored in the water tank 17.

In the hydroelectric generators 15 and 16, the water in the water tank 17 pumped up by the operation of the hydrostatic pump 21 is jetted toward the turbine 20 as a high hydraulic pressure flow, so that the turbine 20 is It rotates at a high speed, and the rotation is transmitted via the driving gear 19 and the driven gear 18 to the hydraulic power generators 15 and 16.
The power is generated by being transmitted to the

The wind power generator 5 and the hydro power generators 15, 16
Are connected to an alternator 6 integrated with an AC / DC converter and a rectifier. In the alternator 6, an AC current from each generator is converted into a DC current, rectified, and supplied to a high-voltage relay 7 (FIG. 5). reference). High voltage relay 7
Is connected to the distribution device 9 and the charging device 11, and further includes an inverter 12, an electric vacuum pump 13 for generating a negative pressure of the brake booster, and an electric motor for facilitating the operation of the steering wheel. Connected to oil pump 14.

The distribution device 9 is a device for selectively using a power source on the main battery 8 side and a power source on the generator side, and is connected to an inverter 32 for controlling a driving motor 31 via a controller 30.

The charging device 11 collects the electric power from each generator and the electric power from the charging solar panel 35, and charges the auxiliary battery 10 mainly and the main battery 8 as the secondary battery.

The accessory battery 10 is charged by the charging device 11 as described above, and is used as a power source at the time of starting, and is supplied with the alternator 6, the high-voltage relay 7, and the inverter 12
Then, the electric motor 22 for driving the hydraulic pump 21 is started via the resistor 36. As a result, power generation in the hydroelectric generators 15 and 16 is started. At the time of the start of the power generation, the power supply from the auxiliary battery 10 is stopped.

The resistor 36 is connected to the accelerator pedal sensor 2
The inverter 12 controls the resistor 36 in order to adjust the voltage between the electric motor 22 and the motor 22 in conjunction with the motor 8. The accelerator pedal sensor 28 operates in conjunction with the resistor 36 and the controller 30 to adjust the voltage as needed.

The controller 30 is usually connected to a coaxial three-unit rear-wheel drive motor 31, and adjusts the voltage of the power supply there. The electric power is supplied to the rear wheel drive motor 31 at the time of starting or climbing a hill.
(A) to (c), but during normal traveling, only two of them (15b, 15c) are considered. The output shaft of the rear wheel drive motor 31 is connected to a differential 3 via a transmission 33.
4 to drive the rear wheels.

The main battery 8 has the following configuration.
Since discharging and charging cannot be performed at a high voltage in the individual terminals, batteries B and C provided with terminals 37 exclusively for charging are provided (see FIG. 6). Battery C charges up to battery D, and battery B charges up to battery A.

When the starter switch is turned on in the apparatus having the above-described configuration, the electric motor 22 is started by using the auxiliary battery 10 as a power source to operate the hydraulic pump 21, thereby starting to drive the hydroelectric generators 15 and 16. At the same time, with the main battery 8 as a power source, the rear wheel drive motors 31 (a to c) operate via the controller 30, and the rear wheels can be driven to rotate.

When the vehicle starts running and enters a medium-to-high speed running state, the wind strongly flows into the wind tunnel 3, and as a result, the impellers 1 and 2 rotate at high speed to drive the wind power generator 5 to rotate, thereby generating power. Let it. Since the current generated by the wind power generator 5 and the hydroelectric generators 15 and 16 is an alternating current, the current is converted into a direct current by the alternator 6 and rectified. The rectified DC current passes through a high voltage relay 7 and is distributed to a distribution device 9, a charging device 11, an inverter 12, an electric vacuum pump 13 for generating a negative pressure for braking, and an electric motor for facilitating the operation of a steering wheel. It flows to the oil pump 14.

The current flowing from the high voltage relay 7 through the charging device 11 flows to the main battery 8 and the auxiliary battery 10, and each is charged. Also, the flow to the distribution device 9 flows only when it is switched to a point on the generator side instead of the main battery 8 side, from which it flows to the controller 30 via the inverter 32 and the motor 15 for rear wheel drive. (B, c) is driven. When the main battery 8 is sufficiently charged, the distribution device 9 switches to the point on the main battery 8 side, and the rear wheel drive motor 15
(B, c) are driven using the main battery 8 as a power source.

[0021]

Since the present invention is as described above, the battery can be charged efficiently by using the traveling wind, hydraulic power and sunlight, and thus the consumption of the battery can be sufficiently suppressed. There is an effect that can be done.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a charging system according to the present invention.

FIG. 2 is a diagram showing a hydroelectric generator in the charging system according to the present invention.

FIG. 3 is a diagram showing an inner wall of a water tank in the charging system according to the present invention.

FIG. 4 is a diagram showing a water turbine of a hydroelectric generator in the charging system according to the present invention.

FIG. 5 is a diagram showing a connection relationship between an alternator and a high-voltage relay in the charging system according to the present invention.

FIG. 6 is a diagram showing a main battery in the charging system according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Impeller 2 Impeller 3 Wind tunnel 4 Belt 5 Wind generator 6 Alternator 7 High voltage relay 8 Main battery 9 Distributor 10 Auxiliary battery 11 Charging device 12 Inverter 13 Electric vacuum pump 14 Electric oil pump 15 Hydroelectric generator 16 Hydroelectric generator 21 Hydraulic pump 22 Electric motor 23 Generator 24 Generator 28 Accelerator pedal sensor 30 Controller 31 Rear wheel drive motor 32 Inverter 33 Transmission 34 Diff 35 Solar panel for charging 36 Resistor

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) B60L 8/00 F03B 17/06 11/14 ZHV F03D 9/00 H B60R 16/04 9/02 B F03B 17 / 06 H02J 7/00 303B F03D 9/00 303Z 9/02 7/02 F H02J 7/00 303 B60K 9/00 A B 7/02 Z F term (reference) 3D035 AA05 3H074 AA13 BB10 CC11 CC38 CC43 3H078 AA02 AA13 AA26 AA31 AA34 BB02 BB11 CC02 CC12 CC22 CC32 CC73 5G003 AA06 AA07 BA01 DA04 DA18 FA06 5H115 PA11 PC06 PG04 PI15 PI16 PI17 PI25 PI29 PI30 PO06 PU01 PU21 QE01

Claims (2)

[Claims] 1. A main battery and an auxiliary battery, a wind generator for rotating an impeller by running wind and a hydraulic generator for rotating a water turbine by hydraulic power for charging each of the batteries, and a main battery side. A distributing device that switches between a power source and a generator-side power source and uses one of them as a power source for a driving motor; and a driving device that is driven by electric power supplied through the distributing device to rotationally drive a front wheel and / or a rear wheel. A charging system for an electric vehicle, comprising: a driving motor; and an auxiliary battery for driving the hydraulic power generator at the time of starting. 2. The electric vehicle charging system according to claim 1, further comprising: a solar panel mainly charging the auxiliary battery and charging each of the auxiliary batteries according to the main battery.