JPH11205902A - Motor car control device and motor driven motorcycle control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a motorcycle driven by an electric motor from starting abruptly. SOLUTION: Provided between an electric motor 22 and a grip speed control 18 is a controller 47, to which a key switch 14, a stand switch 16, a starter switch 19, a car speed detecting device 51 and a speaker 55 are connected. Also, a driver 46 is connected to the controller 47 via a pre-driver 45 to control the motor 22. The controller 47 makes car speed controllable with the speed control 18 when detecting that a car is running. While it is in a stop, however, the control 18 is set to the lowest position of. Only after a stand is retracted and the starter switch 19 is closed does not motor become controllable and an alarm is announced from the speaker that this is a motorcycle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for facilitating operation of an electric vehicle and an electric motorcycle running on a road surface when starting.

[0002]

2. Description of the Related Art In an electric vehicle, a manually operated clutch used in an engine vehicle is not interposed between a motor and wheels, but a speed operating member such as an accelerator grip or an accelerator pedal is used. The members are used so that the vehicle can be driven with the same feeling as driving an engine vehicle. However, with such a configuration, when the power of the electric vehicle is turned on, a key switch for the power is turned on while performing the operation of adjusting the speed operation member to the biasing position with the same feeling as that of the engine vehicle.

To prevent this, it is conventionally known that the motor circuit cannot be controlled unless the speed operating member is returned to the unadjusted position (Japanese Patent Publication No. 51-32007).

[0004]

In the prior art described above, if the current in the control circuit is temporarily cut off during driving due to an erroneous operation of the key switch or for any reason, the speed operating member is not operated. Unless it returns to the adjustment position, the control circuit has a problem that the operation is interrupted. An object of the present invention is to obtain a vehicle without such inconvenience.

[0005]

The means for solving the above-mentioned problems in the present invention is as described in claims 1, 2, and 3.

The fact that the speed operation member is at the lowest speed position means that the speed operation member is in an unadjusted position and that the vehicle does not travel even if the speed operation member is operated. Indicates that the member is within the operation range of.

First, the invention of claim 1 comprises the following items.

[0008] In an electric vehicle having a motor as a wheel drive prime mover and having a controller adjusted by a speed operating member and controlling the rotation speed of the motor, the controller has a vehicle running state detecting means and satisfies one of the following conditions. A controller for an electric vehicle, characterized in that the controller is operated only in a case.

First condition: when the vehicle is detected to be running by the vehicle running state detecting means.

Second condition: a case where the vehicle traveling state detecting means has detected that the vehicle is not traveling and the speed operating member is at the lowest speed position.

Next, the invention according to claim 2 includes the following items.

An electric two-wheeled motor having a motor as a wheel drive prime mover and having a controller which is adjusted by a speed operating member and controls a rotation speed of the motor. The controller has a stand position detecting means. A controller for an electric motorcycle, wherein a controller is operated.

Condition: When the speed operating member is at the lowest speed position after the stand is stored.

[0014] The invention according to claim 3 comprises the following items.

[0015] In an electric vehicle having a motor as a wheel drive prime mover and a controller which is adjusted by a speed operating member and controls the rotation speed of the motor, a start switch is provided in the controller. A control device for an electric vehicle, wherein the control device is operated.

Condition: When the start switch is turned on and the speed operating member is at the lowest speed position.

The operation of the invention of each claim is as follows. According to the first aspect of the present invention, the controller operates when the vehicle is detected to be traveling by the vehicle traveling state detecting means provided in the controller. Further, when it is detected that the vehicle is not traveling and the speed operating member is at the lowest speed position, the controller operates, and when the member is further operated, the motor can be controlled.

According to the second aspect of the present invention, when the stand is detected by the stand position detecting means provided in the controller and the speed control member is at the lowest speed position, the controller is turned off. Operates to enable motor control.

According to the third aspect of the present invention, since the controller is provided with a start switch, when the start switch is turned on when the speed operating member is at the lowest speed position, the controller operates to power the vehicle. It is possible to notify that the vehicle is a car and to control the motor.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a motorcycle embodying the present invention, 2 is a head pipe, 3 is a down tube, on which a bottom frame 4 and a rear frame 5 are extended, and a seat 6 serving as a lid is provided on the rear frame 5. Provided storage box 7 is attached. Reference numeral 8 denotes a power unit having a motor, a transmission, and the like inside. A rear wheel Wr is mounted on a rear portion of the power unit, and a front portion is pivotally supported by a rear frame 5 by a pivot 9. A cushion is provided between the rear upper surface and the rear frame 5. 10 are interposed.

A battery 11 for driving a motor is mounted on the bottom frame 4, and a charger 12 for charging the battery 11 is mounted on a rear portion of the rear frame 5. Then, a front cover 13a, an inner cover 13b,
A cover 13 including a side cover 13c and the like is fixed to the frame, and a key switch 14 is mounted on the inner cover 13b. The key switch 14 is a power switch, and is an essential switch provided to prevent theft, discharge of the battery, and the like.

A main stand 15 and a micro switch-type stand switch 16 which is opened and closed by the main stand 15 are attached to a bracket at the rear of the bottom frame 4, and an accelerator grip type as shown in FIG. A speed operation member 18 is provided, and a start switch 19 and a lighting switch 20 are provided. The start switch 19 is provided for activating the controller and for generating a warning for confirming the driver's intention to start and preventing an erroneous operation. In the case of a vehicle that does not require a warning that only the handling is performed, the start switch 19, the voice recorder 54, the speaker 55, etc. are omitted and the key switch 14
The controller 47 may be activated when is entered.

The power unit 8 has an outer shell formed by a case 21 as shown in FIG.
, A middle cover 21b and a cover 21c.
2, equipped with a transmission 23 and a reduction gear 24, the pivot 10 at the front end
And a rear axle 26 protrudes from the rear side.

An output shaft 27 of the motor 22 is mounted with a variable-diameter driving V-pulley 28 of the transmission 23, and its movable sheave 28a
A centrifugal weight 30 is interposed between the movable sheave 28a and the guide 29 so as to press the movable sheave 28a toward the fixed sheave 28b in accordance with an increase in the speed of the motor 22 so as to enlarge the working radius of the belt 31. On the other hand, a sleeve 33 is loosely fitted to the driven shaft 32, and a variable-diameter driven-side V pulley 34 is attached to the inner end side of the sleeve 33, and the movable sheave 34a is applied by a spring 35 toward the fixed sheave 34b. It is under pressure.

A centrifugal clutch is provided on the outer end of the driven shaft 32.
A clutch piece 37 is provided on the sleeve 33.
The clutch drum 40 is pivotally supported by pins 39 of a disc 38 fixed to the
Is fixed to the driven shaft 32. Therefore, when the driven V-pulley 34 rotates at a predetermined speed, the clutch piece 37 rotates around the pin 39 by centrifugal force and contacts the drum 40,
Thus, the centrifugal clutch 36 is connected, the driven shaft 32 is driven, and the rear axle 26 is driven via the speed reducer 24 including the stepped gear group 41.

The motor 22 is of a well-known FET chopper control type and has a rotor 42 having a permanent magnet NS as shown in FIG.
A driver 46 having a group of FET transistors 44 and a pre-driver 45 is connected to each field 43, is controlled to a predetermined speed by a controller 47, and is adjusted by the grip 18 and a variable resistor 48 as a control signal. Voltage is applied.
In the drawing, reference numeral 49 denotes a power supply circuit of the battery 11, and reference numeral 50 denotes a rotation angle detection unit for controlling a transistor.

The controller 47 is also connected to a vehicle speed detector 51 for detecting the rotational speed of the front wheel Wf, the key switch 14, the stand switch 16, and the start switch 19, and a backlight of a speedometer 52 as an output side element. 53, voice recorder 54, speaker 55
53 is a speedometer 52 provided on the upper surface of the handle 17 shown in FIG.
The loudspeaker 55 is provided adjacent to the speedometer 52 so as to illuminate a display window 56 that is installed inside the vehicle and indicates that the vehicle is an electric vehicle.

The controller 47 operates in accordance with the flow chart of FIG. 6. If the start switch 19 is turned on, the controller 47 determines whether or not the vehicle is running in accordance with the signal of the vehicle speed detecting section 51. The controller 47 is operated, and when not traveling, the controller 47 is operated only when the speed operation member 18 is at the lowest speed position.

Therefore, even if the control circuit is temporarily opened during traveling, if the circuit is closed, the speed control corresponding to the position of the speed operating member 18 is performed regardless of the position. It is not necessary to return the speed operation member 18 to the lowest speed position.

When the key switch 14 is turned on and the speed operating member 18 is at the lowest speed position, the controller 47 turns on the start switch 19 or turns on the stand switch 16 when the main stand 15 is stored. The motor 22 is driven at a low speed by the operation of the controller 47. At this speed, the centrifugal clutch 36 does not operate and the vehicle does not start. But voice recorder 54,
The speaker 55 is temporarily activated to notify by voice that the vehicle is an electric vehicle, and the lamp 53 is turned on to warn the driver of the electric vehicle from the display window. Then, when the motor 22 is accelerated by the speed operating member 18, the centrifugal clutch 36 is connected and power is transmitted to the rear axle 26.

The motor 22 is driven by the battery 11, and the voltage applied to the motor 22 is controlled by the duty ratio of chopping. When the battery voltage becomes different from the specified value, the duty ratio is reduced. Is automatically changed so that a required voltage is applied. In FIG. 7, the voltage adjusting means adjusts the voltage of the power supply circuit 49 by transmitting the duty ratio determined by the voltage correcting means 57 and the pulse generating means 58 to the driver 46 in the circuit 49a.

The duty ratio is represented by a / b, where a is the on time and b is the chopping time. When the battery voltage fluctuates, the voltage correction means 57 uses the correction coefficient k (0 <k). The output is corrected by creating a pulse with a ratio multiplied by ≦ 1). In FIG. 8, the battery voltage is plotted on the horizontal axis, the voltage at which the power performance can be ensured even when the voltage drops is V ₀ , the correction coefficient k at V volts is determined as shown, and k = V ₀ / V. If the motor 22 has V · a / b
・ K = a / b ・ This is the same as adding a DC constant voltage of V ₀ .
Therefore, the motor control is always performed under the same conditions as when the constant voltage V ₀ is applied, regardless of the level of the battery voltage.

[0033]

As described above, according to the first aspect of the present invention, the control circuit is temporarily opened since the vehicle speed is detected and the controller is always operated during traveling. However, since it is not necessary to return the speed operation member to the closed position and restore the circuit, the driving operation can be easily performed.

If the key switch is turned on, the controller operates even when the vehicle is not running and the speed operating member is at the lowest speed position. By operating the speed operating member from this position, the vehicle is operated. Can be gradually accelerated from the stopped state, and there is an effect that sudden start of the vehicle can be prevented.

Next, according to the second and third aspects of the present invention, it is possible to start the vehicle after the stand is stored or the start switch is turned on, so that there is an advantage that the driver does not have to be bothered when operating those units. is there.

[Brief description of the drawings]

FIG. 1 is a side view of a motorcycle embodying the present invention.

FIG. 2 is a partially enlarged view of a handle.

FIG. 3 is a cross-sectional view of the power unit.

FIG. 4 is a motor control circuit diagram

FIG. 5 is a front view of the instrument section.

FIG. 6 is a flowchart of a control operation.

FIG. 7 is an explanatory diagram of the operation.

FIG. 8 is an explanatory diagram of a correction operation.

[Explanation of symbols]

 8 Power unit 22 Motor 14 Key switch 15 Main stand 16 Stand switch 19 Start switch 47 Controller 55 Speaker 56 Display window 57 Voltage correction means

Claims (3)

[Claims] 1. An electric vehicle having a motor as a wheel drive prime mover, b. A controller adjusted by a speed operating member and controlling a rotation speed of the motor, c. d. The control device for an electric vehicle, wherein the controller operates only when any of the following conditions is satisfied. f. First condition: when the vehicle running state detecting means detects that the vehicle is running. g. Second condition: when the vehicle traveling state detecting means detects that the vehicle is not traveling and the speed operating member is at the lowest speed position. 2. An electric motorcycle including a motor as a wheel drive prime mover, b. A controller adjusted by a speed operating member and controlling a rotation speed of the motor, h. The control device for an electric motorcycle, wherein the controller operates when the following condition is satisfied. j. Condition: When the speed operating member is at the lowest speed position after the stand is stored. 3. An electric vehicle comprising: a. A motor as a prime mover for driving a wheel; b. An electric vehicle having a controller adjusted by a speed operating member to control a rotation speed of the motor; k. A start switch provided in the controller; Wherein the controller is operated when the condition (1) is satisfied. m. Condition: When the start switch is turned on and the speed operation member is at the lowest speed position.