JPH0583863A - Charger for motor-driven vehicle - Google Patents

Abstract

PURPOSE:To provide a charger that keeps the electric vehicle being charged from starting. CONSTITUTION:A switch 50 to be switched by a charging plug P to be inserted into a plug socket 46 of a battery charger connected to a drive motor, is provided, and a controller for stopping energization of the motor when the insertion of the plug P is detected by the switch 50 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging device for an electric vehicle.

[0002]

2. Description of the Related Art Recently, a so-called electric vehicle in which a drive source is changed from an internal combustion engine to a motor has been actively developed (see, for example, Japanese Utility Model Publication No. 51-80848).

[0003]

An electric vehicle is equipped with a large-capacity battery for driving a motor,
When charging this type of battery, it is necessary to keep the vehicle from moving in order to prevent damage to the charging cord and the battery itself. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a charging device for an electric vehicle in which the vehicle does not move during charging.

[0004]

According to the present invention, in order to achieve the above object, an outlet of a battery charger connected to a drive motor is provided with a switch which can be switched by a charging plug inserted therein. Thus, when it is detected that the charging plug is inserted, the controller is configured to stop energizing the driving motor.

[0005]

When the plug extending from the power source side is inserted into the outlet of the battery charger, the controller stops the power supply to the drive motor, so that the vehicle will not start when the start switch is operated.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a scooter type motorcycle equipped with a charging device according to the present invention. In the drawings, reference numeral 1 indicates a vehicle body frame, which is composed of a front frame 2, a center frame 3 and a rear frame 4, the outside of which is a rag shield 6, a step floor 7, a rear cover 8 and an under cover. It is covered with a synthetic resin body 10 composed of 9.

Head pipe 1 fixed to front frame 2
A front handlebar 16 having a running handle 13 at its upper end and a front wheel 15 mounted on a lower end via a front cushion 14 is pivotally supported at 2.

At the rear part of the central frame 3, a front end of a swing-type power unit 18 having a rear wheel 17 mounted on the rear end is pivotally supported by a pivot 20 so as to be vertically movable, and the rear upper surface of the power unit 18 and the rear frame are supported. 4 is connected via a rear cushion 21. The power unit 18 is driven by a battery 23 arranged at the lower part of the central frame 3 and covered with the under cover 9 at the lower part.

A motor M is built in the power unit 18, and a considerable amount of heat is dissipated from the coils constituting the motor M when the motor is driven, but the heat is generated by the forced fan built in the power unit 18. Occurs,
An intake passage 24 extending obliquely rearward of the power unit 18, and a duct 26 connected to the intake passage 24 via an expandable joint 25 to provide the rear cover 8 on the upper portion of the vehicle body.
Along with the flow of air that is sucked into the power unit 18 from the inside and discharged to the outside, the air is discharged to the outside of the power unit 18.

A storage case 28 for accommodating a helmet or the like is provided between the power unit 18 and the seat 21, and a storage case 29 is provided behind the storage case 28 (see FIG. 2). The storage case 28 and the small storage case 29 are integrally formed of resin, and are partitioned by a partition wall 30 interposed therebetween. A pin 31 is inserted through an upper portion of the partition wall 30, and the pin 31 covers the lid 32 of the container 28 and the horizontal partition plate 33 of the accessory container 29.
Each is rotatably supported. The controller 35 is attached to the upper portion of the horizontal partition plate 33 by bolts to the mounting portions 36 formed to project from both ends of the horizontal partition plate 33. As shown by the chain double-dashed line in FIG. 2, the horizontal partition plate 33 is erected in a vertical state after being rotated, and when the leading end of the horizontal partition plate 33 is engaged with the lower engaging portion 21a of the seat 21, the seat 2
It also functions to hold 1 in that state.

Wirings extending from the controller 35 are exposed to the outside from both ends of the rear portion of the storage case 28, and then to the outside of the storage case 29 through holes formed in both side walls of the storage case 29 to be connected to a predetermined location.

Behind the storage case 28 and below the storage case 29, a charging device 40 has an upper opening 41 for the storage case 2.
In a state of penetrating the bottom portion of 9, the stay 9 and the cross pipe (not shown) extending from the rear frame 4 are supported and provided. In the charging device 40, as shown in FIG. 4, a heat sink 43 and a circuit board 44 are housed inside a casing 42 having a trapezoidal shape in plan view, and the casing 4
An exhaust air fan 45, a charging outlet 46, and an intake duct 47 having an air filter at a lower portion thereof are provided in a projecting portion having the opening 41 formed at one end of 2. As shown in FIG. 5, the heat sink 43 has a choke coil 48, which is a member that easily generates heat.
And a FET 49, which will be described later, are arranged separately above and below.

The charging outlet 46 is shown in FIG.
As shown in (b), an electric switch 50 such as a limit switch which is switched when the charging plug P is inserted therein is provided with an opening 46a on the side wall of the outlet by a fixing means such as a screw on the side wall of the outlet. It is attached in a state in which the operator 50a is projected inward.

FIG. 7 shows a control system of the motor M mounted on the vehicle. The motor M shown here is a DC brushless motor, and has a permanent magnet 52 on the outer periphery of an iron core fixed to the rotating shaft.
And a stator made up of a coil 54 wound around an iron core inside a motor housing, and a magnet 56 fixed to the rotating shaft and a hole arranged so as to face the outer periphery of the magnet 56. A rotor position sensor 58 including an element 57 is provided. The controller 35 is
A signal is input from a throttle opening sensor 59 such as a potentiometer connected to the accelerator grip of the operation handle 13, and the energization duty ratio of the motor coil 54 is determined based on the signal. A signal is input to the controller 35 from the rotor position sensor 58, and the motor coil 54 to be energized is determined based on the signal. further,
Signals are also input to the controller 35 from the plug switch 50 attached to the charging outlet 46 and the side stand storage sensor 60, and the energization of the motor coil 54 is determined based on these signals.

A driver 61 interposed between the controller 35 and the motor M controls six FETs 49 and the FET 49 group on the basis of a signal from the controller 35 to sequentially output a stator current of the motor M. A switching circuit 62 for switching is provided. The charging device 4
0 indicates that when the main switch 63 is turned on and is connected to the AC100V power source for household use etc. via the plug P,
The battery 23 is charged, and when the plug P is connected, the outlet switch 50 issues an off signal to the controller 35 as described above.

Next, the operation of the motor provided with the above-described charging device will be described. To drive the vehicle, first the main switch 63 is turned on (step 1). In this state, the controller 35 has the throttle opening sensor 5
Signals are sequentially input from 9, the rotor position sensor 58, and the plug input switch 50 (steps 2 to 4). If the signal from the outlet switch 50 is on,
Based on the signal from the rotor position sensor 58, the energization motor coil 54 is determined, and the energization duty ratio is determined based on the input signal from the throttle opening sensor 59 (steps 5 to 7). .. Then, an on / off signal is sent to the driver 61 to drive the motor M at a predetermined rotation speed (step 8). After that, the above-described series of cycles is repeated to control the rotation of the motor (steps 2 to 8).

For charging, the seat 21 is rotated around the hinge at the front end to be opened while the vehicle is stopped, and the horizontal partition plate 33 of the accessory case 29 is set to 2 in FIG.
The charging plug P extending from the household outlet is inserted into the outlet 46 of the charging device 40 in an upright state as indicated by the dotted line. At this time, since the outlet switch 50 is turned off, as shown in FIG. 8, the controller 35 sends a signal to the driver 61 to stop all energization to the motor coil 54 and set the duty ratio to 0% (step 9, 10). Therefore,
No drive signal is issued from the tribar 61 to the motor M, the vehicle body does not start moving even if the throttle opening is increased, and the tire does not rotate and the charging cord is caught.

Further, as shown in FIG. 2, since the seat 21 can be held in an open state, the charging cord can be taken out from the charging device 40 without being pinched, and a gap between the seat 21 and the rear cover 8 can be obtained during charging. It is possible to easily discharge the warm air exhaled from the exhaust fan 45 to the outside by using the above, so that the temperature rise inside the charging device 40 can be suppressed, and it is possible to confirm from the outside that charging is in progress. There is also an advantage. When the charging is completed, the horizontal partition plate 33 is tilted down again by lowering the seat 21 in the reverse order of the above-described procedure, and the original traveling state is obtained.

In a normal traveling state, the opening 41 of the charging device 40 is inserted into the small container 29, and the horizontal partition plate 33 functions as a lid for the opening 41. Therefore, the opening is doubly protected, and water and pride can be prevented from entering there.

[0020]

As described above, according to the present invention, when the plug extending from the power source side is inserted into the outlet of the battery, the power supply to the drive motor is stopped by the controller. When the opening is increased, the vehicle does not start moving, and the tires do not rotate and the charging cord is caught.

[Brief description of drawings]

FIG. 1 is a side view of a motorcycle equipped with a charging device according to the present invention.

FIG. 2 is a detailed sectional view of a rear portion of the vehicle.

FIG. 3 is a plan view showing a rear portion of a vehicle body with a seat removed.

FIG. 4 is a perspective view of a charging device.

FIG. 5 is a front view showing a heat sink and members attached thereto.

6 (a) and 6 (b) are side views showing a connection between an outlet and a plug.

FIG. 7 is a circuit diagram showing a control system of a motor.

FIG. 8 is a flowchart showing the action of control.

[Explanation of symbols]

 1 Battery 35 Controller 40 Charging Device 46 Outlet 50 Outlet Switch M Drive Motor P Charge Plug

Claims (1)

[Claims] 1. An outlet of a battery charger connected to a drive motor is provided with a switch that can be switched by a charging plug inserted therein, and when the switch detects that the charging plug is inserted. A charging device for an electric vehicle, further comprising a controller for stopping energization of the drive motor.