JPH06328970A - Erroneous start preventing device of electric driven scooter - Google Patents

Abstract

PURPOSE:To prevent unexpected sudden starting by switching the ON/OFF condition of a relay to relay a control circuit of a motor and a throttle to the ON condition when a logical circuit detects the signal to detect at least the operational condition of a brake. CONSTITUTION:The rotation of a motor 1 of a driving system in an electric driven scooter is controlled by a throttle 3 to relay a relay 2, and when the relay 2 is in the ON condition, the motor output according to the control variable of the throttle 3 is generated. In swiching the ON/OFF condition of the relay 2, the relay 2 is controlled to be switched to the ON condition when one or more conditions are established among the condition where a brake is operated by a logical circuit 4 where four signals from a throttle circuit 5, of the brake operating condition 6, of the number of revolution 7 of the motor, and the vehicle speed 8 are received and the opening of the throttle is sufficiently small, the condition where the motor is rotated, and the condition where the vehicle speed is not zero. This constitution prevents the sudden start by the erroneous operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an erroneous start prevention device for an electric scooter which surely prevents erroneous start of an electric scooter due to an erroneous operation by a driver or the like.

[0002]

2. Description of the Related Art Unlike an internal combustion engine scooter, an electric scooter has the advantage that it does not need to start the engine and that it is quiet because it does not have an idling state. O
I have to rely only on N and OFF, and it is difficult to distinguish it at first glance.

Therefore, as a conventional erroneous starting prevention device for an electric scooter, a system in which a drive device is operated only when a driver or the like is seated in a seat by a switch embedded in the seat, or a driver or the like is seated A method is used to alert the driver, etc. by sounding a buzzer when seated and not operated.

[0004]

However, the conventional system for preventing an accidental start is not sufficient for preventing accidents where the electric scooter is accidentally started by a driver's careless operation of the throttle.
In particular, a person other than a driver who is not accustomed to the electric scooter and who has little knowledge is more likely to make an error operation than a person who is normally driving, such as an owner of the electric scooter, and is dangerous.

Therefore, an object of the present invention is to provide an erroneous start prevention device for an electric scooter, which can prevent accidents such as sudden start due to an erroneous operation when the scooter is stopped, without losing the above advantages of the electric scooter. Is.

[0006]

As a means for solving the above-mentioned problems of the prior art, an erroneous start preventing device for an electric scooter according to the present invention is an electric motor in which a prime mover is a motor, as shown in the drawings. In the scooter, the relay 2 that relays the control circuit of the motor 1 and the throttle 3 is turned on or off by the logic circuit 4 detecting at least a signal detecting the operating state 6 of the brake. It is characterized in that it cannot start even if the throttle 3 is operated unless the brake is operated.

Further, the relay 2 is switched on or off when the brake is operated and the throttle opening 5 is sufficiently small, the motor 1 is rotated, and the vehicle speed is not zero. If any one or more of the above conditions are not satisfied, the motor 1 is turned off and the motor 1 cannot be energized.

[0008]

The operation of the motor 1 by the throttle 3 becomes possible only when the driver or the like operates the brake in the closed state in which the throttle 3 is returned to zero. And
When the motor 1 is started and is rotating or the wheels are rotating, the motor 1 can be controlled by the throttle 3 even if the brake is released. That is, since the driver is requested to operate the brake and the throttle 3 appropriately only when the vehicle starts from the stopped state without any influence during normal traveling, erroneous start can be surely prevented.

[0009]

EXAMPLE An example of the present invention shown in the drawings will be described below.
FIG. 1 is a block diagram of an erroneous start prevention device implemented in a drive system of an electric scooter, and FIG. 2 is a logic diagram of the drive system. The rotation of the drive system motor 1 is operated by the throttle 3 that relays the relay 2. When the relay 2 is in the on state, a motor output corresponding to the operation amount (opening) of the throttle 3 is obtained, and the motor 3 is turned off. In the state, the power supply to the motor is stopped. Switching the relay 2 on and off is done by the logic circuit 4
Done by Four signals of a throttle opening 5, a brake operating state 6, a motor speed 7 and a vehicle speed 8 are input to the logic circuit 4. The logic circuit 4 is
Based on the two input signals, one or more of the following conditions are satisfied: the brake is operating and the throttle opening is sufficiently small, the motor is rotating, and the vehicle speed is not zero. It is detected that the relay 2 is turned on.

Therefore, when the electric scooter is started,
The motor is not started unless the driver operates the brake, and even if the brake is operated with the throttle opened more than necessary, the motor will not suddenly rotate and drive force will not be generated. Is secured. Further, even if the vehicle speed is 0, if the motor is started, the motor can be controlled by the throttle even if the brake is released, so there is no difficulty in the coordinated operation of the brake and the throttle such as when starting on a slope. 2 While the electric scooter is traveling, the relay 2 is always in the ON state, so that the false start preventing device does not operate at all and the safe and light traveling of the electric scooter is maintained.

[0011]

The erroneous start prevention device for an electric scooter according to the present invention reliably prevents accidents such as a sudden start caused by an erroneous operation such as an unintentional throttle operation by the driver, etc. It contributes to improving the safety of scooters and preventing accidents in traffic accidents.

[Brief description of drawings]

FIG. 1 is a block diagram showing an erroneous start prevention device in a drive system of an electric scooter.

FIG. 2 is a logic diagram showing functions of a logic circuit.

[Explanation of symbols]

 1 Motor 3 Throttle 5 Throttle opening

Claims (2)

[Claims] 1. In an electric scooter in which a prime mover is a motor, a logic circuit detects at least a signal detecting a brake operation state when switching a relay that relays a control circuit of the motor and a throttle to an on or off state. An erroneous start preventive device for an electric scooter, characterized in that it is configured to be turned on by means of an electric scooter and that it cannot be started even if a throttle is operated unless the brake is operated. 2. In an electric scooter in which a prime mover is a motor, switching of a relay that relays a control circuit of the motor and a throttle to an on or off state requires that a brake is operated and a throttle opening is sufficiently small. And a condition in which the motor is rotating and a condition in which the vehicle speed is not 0 are not satisfied unless one or more conditions are satisfied, and the motor is not energizable. Accidental start prevention device for electric scooters.