JPH09323679A - Small electric car - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a small electric vehicle in which notification after a seated state is not annoying to a driver or the like. SOLUTION: A seating detection means 12 for detecting the presence / absence of an operator is provided on a steering seat 6A, and when it is detected that a seated state has changed to a non-seated state based on the detection result of the seating detection means 12. A compact electric vehicle provided with an informing means K for issuing an alarm that the seat is not seated, the informing means K being based on the detection result of the seating detecting means 12.
When it is detected that the seated state has changed to the non-seated state and the person has not been seated for a predetermined time or longer, the warning of the non-seated state is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a seating detecting means for detecting whether or not a driver is seated on a steering seat, and changes from a seated state to a non-seated state based on the detection result of the seating detecting means. The present invention relates to a small electric vehicle provided with an informing unit that warns that the vehicle is in a non-seated state when it is detected.

[0002]

2. Description of the Related Art Conventionally, in a small electric vehicle of this type, a main switch is turned on, and when the operator is seated on the seat and then the operator leaves the seat, the seat is not seated. It has been proposed that a buzzer or the like informs that the main switch is on, and calls attention to the fact that the main switch remains in the ON state.

[0003]

However, in the above-mentioned conventional device, the warning is continuously set until the operator gets out of the seat and seats again. Therefore, if the alarm is made by voice, it is annoying and annoying, and even if it is a visual alarm, it will continue to issue the alarm. If you forget to cancel, the battery capacity will be reduced to some extent.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a small electric vehicle in which the notification from the seated state to the non-seated state is not bothersome to the operator or the like. .

[0005]

[Means for Solving the Problems]

(Structure) A small electric vehicle according to claim 1 of the present invention is provided with a seating detection means for detecting whether or not a driver is seated on a steering seat, and based on a detection result of the seating detection means, a seated state Is a small electric vehicle provided with a notification means for warning that the vehicle is in a non-seated state from the seating detection means based on the detection result of the seating detection means. When it is detected that the seat has not been seated for more than a predetermined time after being changed from the seated state to the seated state, the warning that the seat is not seated is stopped.

(Operation) According to the configuration of claim 1 of the present invention, when it is detected that the user has not been seated for a predetermined time after being in the seated state from the seated state, the alarm for the non-seated state is stopped. Therefore, the annoyance of the operator that the alarm continues for a long time is eliminated, and the useless alarm is stopped midway, so that the reduction of the battery capacity can be suppressed.

(Effect) Therefore, according to the structure of claim 1 of the present invention, even if the operator or the like is simply in a non-seated state for a while, it is troublesome to continue the operation. For example, you can stop the alarm such as buzzer,
Not only is it convenient for the pilot, etc., but it also contributes to labor saving by suppressing the decrease in battery capacity because it only issues an alarm for a relatively short time.

(Structure) A compact electric vehicle according to claim 2 of the present invention is the compact electric vehicle according to claim 1, wherein the notification means does not sit on the steering seat after the alarm is stopped. When the operation of the accelerator lever to the speed-increasing side is detected, the notification operation is started again.

(Operation) According to the second aspect of the present invention, the notification means detects that the accelerator lever is operated to the speed-up side without sitting on the steering seat after the alarm is stopped. Then, the notification operation is started again, so that the accelerator lever is set to the speed-increasing side when the operator is pushing the small electric vehicle without properly sitting on the seat for steering. Even if it is operated to, the operator is informed that it is necessary to be careful to operate the accelerator in such a state, and it is possible to prevent the small electric vehicle from traveling unreasonably.

(Effect) Therefore, according to the structure of claim 2 of the present invention, the operator can be made aware that he cannot operate the accelerator unless he / she is properly seated. The operator can be prompted not to operate.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of a small electric vehicle. This small electric vehicle has a body frame 5 supported by a single front wheel 2 steered by a steering handle 1 and a pair of left and right rear wheels 4, 4 driven by an electric motor 3.
And a seat 6, a battery 7, a control device 8, and the like.

As shown in FIGS. 1 and 2, the steering handle 1 is provided with a pair of left and right handle grips 9, 9 and the accelerator is operated in a state where the right handle grip 9 is gripped by both hands. An accelerator lever 10 that can be operated is provided so as to be vertically swingable around a horizontal axis along the left-right direction. Then, the swing operation amount for the accelerator operation of the accelerator lever 10 can be detected by the potentiometer 11, and at the same time, the potentiometer 1
The detection signal 1 is input to the control device 8.

As shown in FIGS. 1 and 2, the seat 6 for steering is provided inside the seat 6A for steering in the seat 6.
A seating load detection sensor 12 is installed as seating detection means for detecting the presence / absence of seating on A. The output signal of the seating load detection sensor 12 is also input to the control device 8. An alarm buzzer 13 is installed on the control handle 1, and the buzzer 13 is driven by an output signal from the control device 8. As shown in FIG. 3, in the main switch-on state, the control device 8 determines, based on the seating detection signal from the seating load detection sensor 12,
Only when the operator is seated on the seat 6A, the vehicle speed control corresponding to the operation of the accelerator lever 10 is enabled (step S4, step S5, step S).
6). In addition, when the seating load detection sensor 12 detects that the vehicle is in a non-seated state, based on the detection result, the control device 8 operates so as to keep the vehicle stopped regardless of the operation of the accelerator lever 10. No drive signal is output to the motor 3 (steps S4 and S7). That is, when the user is not seated on the seat 6A, no operation can be performed even if the accelerator lever 10 is operated. Further, the control device 8 sets the buzzer 13 by a program in advance when the operator gets off the seat 6A after the operator sits on the seat 6A while the main switch is in the ON state. A drive signal for operating for a predetermined time T1 is output (step S4, step S8, step S9, step S10,
Step S11). Then, after operating the buzzer 13 for a predetermined time, when the accelerator lever 10 is operated in the non-seated state, the control device 8 operates the buzzer 13 based on the non-seated detection signal and the accelerator operation signal at that time. (Step S12, Step S1
3). When seated on the seat 6A, the accelerator lever 1
The buzzer 13 is prevented from operating regardless of whether or not the accelerator operation is 0 (step S4, step S4).
5). Here, the buzzer 13 and the control device 8 are informed by the notification means K.
Is composed.

Next, the detecting means for detecting the degree of air reduction in the tires of the rear wheels 4, 4 will be briefly described. FIG.
As shown in FIG. 5, limit switches 15 are provided on the inner side surfaces of the respective tire portions of the left and right rear wheels 4 and 4 for detecting the bulging state of the tire portions toward the inside of the vehicle body. That is, the limit switch 15 composed of a micro switch is installed in the axle case 16, and the switching operation member 17 of the limit switch 15 is installed.
Is provided in advance near the lateral side surface of the tire near the ground contact point of the rear wheel 4. Then, the detection signal of each limit switch 15 is input to the control device 8. With this configuration, when the rear wheels 4 have normal air pressure, the tires of the rear wheels 4 do not extend laterally outwardly so that the switching operation member 17 of the limit switch 15 is pressed by the tires. There is no such thing. As the tire air pressure decreases, the laterally outwardly protruding amount of the tire increases. Therefore, if the tire is overextended for a predetermined amount or more, the limit switch 1 is applied to the overhanging tire.
The control device 8 outputs an output signal for operating the buzzer 13 having a different tone color from the buzzer 13 described above based on the detection result. That is, while the air pressure of the tires of the rear wheels 4 and 4 is reduced,
When the vehicle continues to run, the running resistance due to the decrease in air pressure becomes high, and the battery capacity is likely to suddenly decrease. Therefore, a limit switch 15 is provided so that the decrease in air pressure can be detected as early as possible, and based on the detection result. , The operator is informed of the decrease in air pressure.

[Brief description of drawings]

FIG. 1 is an overall side view showing a small electric vehicle.

FIG. 2 is a schematic explanatory view showing seating detection and the like and a control device.

FIG. 3 is a flowchart related to seating detection.

FIG. 4 is a schematic explanatory view showing a means for detecting tire air pressure.

[Explanation of symbols]

 6A Steering seat 10 Accelerator lever 12 Seating detection means K Notification means

Claims (2)

[Claims] 1. A seating detecting means for detecting whether or not a driver is seated is provided on a control seat, and when the seating state is detected to be a non-seated state based on the detection result of the seating detecting means. A small electric vehicle provided with an informing means for alarming that the user is in a non-seated state, wherein the informing means changes from the seated state to the non-seated state for a predetermined time or more based on the detection result of the seating detection means. A small electric vehicle configured to stop the alarm indicating that the vehicle is not seated when it is detected that the vehicle is not seated. 2. The notification means starts the notification operation again when it is detected that the accelerator lever is operated to the speed-up side without sitting on the steering seat after stopping the alarm. The small electric vehicle according to claim 1, which is configured as follows.