JP2003348711A - Travel control device at non-riding time for electric motor-driven saddle-ride type vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a rider aware of the motor being in a driving state without causing a trouble on another part, even if the motor of an electric motor-driven vehicle is in the driving state, while the rider is not aware of it, and facilitates handling of the vehicle. <P>SOLUTION: A travel control device comprises a rear wheel 10 born by a vehicle body 2; the motor 26 that outputs a driving force for making the rear wheel 10 drive; an acceleration part 30, that inputs an external driving force and increases and decreases the driving force outputted from the motor 26; and the control device 35 that controls the motor 26, based on an operation conducted on the acceleration part 30. With respect to the value of at least one item among the driving force, the vehicle speed and the acceleration of the vehicle, when the acceleration part 30 is operated by a certain operated amount, the value when the rider 14 does not ride on the vehicle body 2 is made smaller than the value, when the rider rides on the vehicle body by controlling the control device 35. <P>COPYRIGHT: (C)2004,JPO

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to prevent the driving of a vehicle from becoming too vigorous during non-riding, even if an accelerator operating section which enables the driving force output by a driving motor to be increased or decreased is operated. The present invention relates to a travel restricting device for a non-riding electric straddle-type vehicle.

[0002]

2. Description of the Related Art As described in Japanese Patent No. 3227770, a motor-driven straddle-type vehicle has a rear wheel supported on a vehicle body and an electric motor for outputting a driving force to drive the rear wheel to travel. And an accelerator operating unit for inputting an operating force from the outside to increase or decrease the driving force output from the electric motor, and a control device for controlling the electric motor based on an operation on the accelerator operating unit. I have.

When the rider operates the accelerator operation section to increase or decrease the driving force output from the electric motor under the control of the control device based on the operated amount, the electric motor is operated by the rider. The driving force output to the rear wheels is increased or decreased, so that a desired traveling state is obtained.

[0004]

However, since the driving noise when the motor is driven is low, even if the motor in the parked vehicle is driven for some reason, the rider will not Without knowing
There is a risk that a maneuvering operation, such as pushing and moving the vehicle, may be performed when the vehicle is not on board.

[0005] Then, in the above-mentioned routing operation, etc.,
If the accelerator operation section is operated unintentionally, a driving force may be suddenly output from the electric motor to the rear wheels, and the vehicle may start running vigorously. Here, the rider will know for the first time that the electric motor is in a driving state, which is not preferable in handling the vehicle. In addition, even if the rider knows that the electric motor is in the driving state, there is a possibility that the vehicle will run vigorously without riding, and it is necessary to pay attention to this. There is also a problem that it becomes complicated.

The present invention has been made in view of the above circumstances. Even when the electric motor of a motor-driven vehicle is in a driving state without the rider's knowledge, the rider can handle the vehicle. An object of the present invention is to make it possible to naturally know that an electric motor is in a driving state without causing any other trouble, and to make it easy to handle a vehicle.

[0007]

SUMMARY OF THE INVENTION The running restricting device of the present invention for solving the above-mentioned problems when the electric saddle-ride type vehicle is not on the vehicle is as follows. Note that the reference numerals added to the terms in this section do not limit the technical scope of the present invention to the contents of the “Embodiments of the Invention” described below.

According to the first aspect of the present invention, a rear wheel 10 supported on the vehicle body 2, an electric motor 26 capable of outputting a driving force for driving the rear wheel 10 to travel, and an external operating force are input. An electric straddle-type vehicle including an accelerator operation unit 30 that can increase and decrease the driving force output from the electric motor 26 and a control device 35 that controls the electric motor 26 based on an operation on the accelerator operation unit 30. At

The control unit 35 controls at least one of the driving force, the vehicle speed, and the vehicle acceleration when the accelerator operation unit 30 is operated by a certain operation amount, thereby controlling the vehicle body 2 In the case where the rider 14 does not get on the vehicle, it is smaller than when the rider 14 does not get on the vehicle.

According to a second aspect of the present invention, in addition to the first aspect, when the vehicle speed is equal to or higher than a predetermined value during the non-ride time,
The output of the driving force from the electric motor 26 to the rear wheel 10 is stopped.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a saddle-ride type vehicle, specifically, an electric motorcycle. Also,
The arrow Fr in the figure indicates the front of the vehicle 1.

The vehicle body 2 of the vehicle 1 includes a vehicle body frame 3 which mainly constitutes the vehicle body 2, a front fork 4 which is supported on the front upper end of the vehicle body frame 3 so as to be steerable, and has a cushioning function, A front wheel 5 is supported at the lower end of the front fork 4, a handle 6 is mounted on the upper end of the front fork 4, and a pivot is provided at a rear lower end of the body frame 3 by a pivot 7 so as to be vertically swingable. Rear arm 8 supported, body frame 3 and rear arm 8
And a rear wheel 10 supported on the swinging end of the rear arm 8. The car body 2
Can be supported on the running surface 11 by the front and rear wheels 5 and 10 (solid lines in FIG. 1).

The vehicle body 2 is mounted on the vehicle body frame 3
A seat 15 supported by the rear upper end and capable of sitting on the rider 14, and a rider 14 seated on the seat 15 supported by the lower end of the body frame 3 in front of and below the seat 15. It has a pair of left and right footrests 16 on which feet can be placed. The seat 15 has a front end pivotally supported by a pivot shaft 17 at a rear upper end of the vehicle body frame 3 so that a rear portion of the seat 15 can reciprocate and rotate upward.

The vehicle body 2 has a main stand 20 disposed below the rear arm 8 of the vehicle body 2. The front end of the main stand 20 is pivotally connected to the rear arm 8 so that the rear portion of the main stand 20 can rotate vertically.
It is pivoted by one. In addition, the main stand 2
1 is a lying posture (hereinafter referred to as a “storage state”) in a state of being turned upward by a solid line in FIG. 1 and a standing posture (in a state of being turned down by a dashed line in FIG. 1) Hereinafter, this is referred to as a “usage state”).

When the main stand 20 is in the "stowed state", the front and rear wheels 5, 10 are both brought into contact with the running surface 11 to be in a normal running state.
On the other hand, when the main stand 20 is in the “use state”, as shown by a dashed line in FIG. 1, the rotating end of the main stand 20 and the front wheel 5 are brought into contact with the running surface 11. Thus, the vehicle body 2 is allowed to stand on the running surface 11, whereby the vehicle 1 is parked.

The vehicle 1 includes a rear arm 8 of the vehicle body 2.
And a driving device 25 that is supported by the swinging end of the rear wheel and enables the rear wheel 10 to be driven to travel. This driving device 25
Is provided with an electric motor 26 capable of outputting a driving force so as to drive the rear wheel 10 to travel, and a planetary gear type speed reducer 27 for interlocking the electric motor 26 with the rear wheel 10. Electric motor 26 and reduction gear 27
Are arranged on the same axis 28.

The vehicle 1 receives an operation force from an external rider and inputs the operation force to the driving device 25 in accordance with the operated amount.
An accelerator operating section 30 is provided to enable the driving force output from the electric motor 26 to the rear wheel 10 to be increased or decreased. The accelerator operation section 30 is constituted by a grip section of the handle 6 gripped by a rider, and the grip section is rotated by an operation of the rider.

The vehicle 1 is detachably supported on the vehicle body frame 3 below the seat 15 and the motor 26
A power supply for supplying electric power so that the electric motor 26 outputs a driving force; a charger 33 for supplying electric power to the battery 32 from another power supply; and a main switch from the battery 32. A control device 35, which is supplied with electric power via 34 and controls the electric motor 26 of the driving device 25 electronically, and a meter 36 attached to the steering wheel 6 and indicating the driving state of the vehicle 1
And

The controller 35 is a central processing unit 39 which is a microcomputer for inputting power from the battery 32 via the main switch 34, and converts a direct current of the battery 32 into an alternating current and supplies the alternating current to the motor 26. And an inverter 40 for enabling the operation. Also, a signal is output from the central processing unit 39 based on the operated amount of the accelerator operation unit 30 by an external operation, and the inverter 40 outputs a signal output from the central processing unit 39. Is input via a gate drive 41. The power module 42 switches the electric power from the battery 32 to a value corresponding to the operated amount of the accelerator operation unit 30 based on a signal output from the central processing unit 39 to the electric motor 26. Comprising an element 45;
The electric motor 26 is supplied from the battery 32 to the electric motor 2.
The output driving force is increased or decreased according to the increase or decrease of the electric power supplied to the power supply 6.

The central processing unit 39 and the inverter 40
The gate drive 41 and the switching element 45 of the power module 42 are provided on a common printed board 46, and this board 46 is supported by the rear arm 8.

The vehicle 1 includes a front wheel rotation speed sensor 50 which is a vehicle speed sensor 49 which is included in the meter 36 and detects a rotation speed of the front wheel 5 and displays a detection signal on a vehicle speedometer. A rear wheel rotation speed sensor 51 for detecting the rotation speed of the wheel 10 is provided.

The vehicle 1 has a seat sensor 52 for detecting whether the rider 14 is seated on the seat 15 and a detector for detecting whether or not the foot of the rider 14 is placed on the footrest 16. A footrest sensor 53, a main stand sensor 54 for detecting whether the main stand sensor 54 is in a “use state” (“housed state”), and an accelerator operation for detecting an operated amount of the accelerator operation unit 30 Unit sensor 55 and a temperature sensor 5 for detecting the temperature of the power module 42
And the sensors 49 to 56 are all electrically connected to the central processing unit 39 of the control device 35, and the respective detection signals are input to the central processing unit 39. .

FIG. 3 shows a flowchart of a program of the control device 35, and reference numeral S indicates each step of the program.

In FIG. 3, in S2, it is determined whether or not the rider 14 is on the vehicle body 2. here,
It is determined that the rider is riding by detecting a signal indicating that the rider 14 is seated on the seat 15 by the seat sensor 52 and placing the foot of the rider 14 on the footrest 16 by the footrest sensor 53. The detection is performed based on at least one of the detection signals. That is, the seat sensor 52 and the footrest sensor 53 constitute a riding sensor.

If it is determined in step S2 that the rider 14 is riding, the vehicle 1 is determined in step S3 to be in a startable state or a running state. Normal control is performed, and the vehicle 1 is controlled to be in a normal driving state.

On the other hand, if it is determined in step S2 that the rider 14 is not in a non-ride state, the driving force or the like output from the electric motor 26 to the rear wheels 10 is zero in step S4.
And made smaller. Specifically, at least one of the driving force, the vehicle speed, and the acceleration of the vehicle when the accelerator operation unit 30 is operated by a certain operation amount is controlled by the control device 35 to control the vehicle body. 2 is smaller than when the rider 14 is not riding, and is reduced, for example, until the driving force or the like is reduced to about 1/10, so that the traveling of the vehicle 1 is reduced. It is prevented from being done vigorously.

The driving force is reduced when the vehicle is not in the vehicle, so that the inverter 4 of the control device 35
The zero power module 42 is controlled, and the power supplied from the battery 32 to the electric motor 26 through the power module 42 is reduced.

For this reason, if the electric motor 26 in the parked electric vehicle 1 closes the main switch 34 (ON).
In a state where power can be supplied from the battery 32, that is, in a driving state, if the rider 14 tries to operate the vehicle 1 in a non-riding state without knowing it, The rider 14 may operate the accelerator operation unit 30 unintentionally.

However, even if the accelerator operating section 30 is operated, the motor 26
Since the driving force and the like output to the rear wheels 10 are made smaller, it is possible to prevent the vehicle 1 from suddenly starting or running at high speed such as running at high speed.

Therefore, even when the electric motor 26 of the electric vehicle 1 is in a driving state without the knowledge of the rider 14, when the rider 14 handles the vehicle 1, it starts to run more slowly than the driving of the electric motor 26. Accordingly, it is possible to naturally know that the electric motor 26 is in the driving state without causing any other trouble, and it is possible to smoothly handle the vehicle 1 thereafter.

Even if the operated amount of the accelerator operation unit 30 is increased, the running of the vehicle 1 does not become vigorous, so that the accelerator operation unit 30 is operated while paying attention not to run vigorously. Since the operation becomes unnecessary, the maneuvering operation of pushing and moving the vehicle 1 can be easily performed.

In the above case, when the vehicle is not riding, the control device 35 determines the maximum values of the driving force and the like, and the maximum vehicle speed is set to such a level that the vehicle 1 can be pushed and walked.

For this reason, the traveling of the vehicle 1 during non-ride is more reliably regulated irrespective of the operated amount of the accelerator operation section 30, and the electric motor 26
Can be more naturally known that the vehicle 1 is in the driving state, and the maneuvering operation of the vehicle 1 can be further facilitated.

Next, at S5, the vehicle speed sensor 4
Based on the detection signal of No. 9, the control device 35 determines whether or not the vehicle speed of the vehicle 1 is equal to or higher than a predetermined value. If the vehicle speed is not equal to or higher than the predetermined value, the process returns to step S2. The supply of electric power to the electric motor 26 is stopped, and accordingly, the output of the driving force from the electric motor 26 to the rear wheel 10 is stopped.

Therefore, the occurrence of the inconvenience that the vehicle 1 continues to run at an excessively high speed equal to or higher than the predetermined value when the vehicle is not riding can be more reliably prevented. Therefore, it can be more naturally known that the electric motor 26 is in the driving state.

Although the above description is based on the illustrated example, the vehicle 1 may be a tricycle. In S5, when the vehicle speed is equal to or higher than the predetermined value for a predetermined time, output of the driving force from the electric motor 26 to the rear wheel 10 may be stopped. The stop of the output is not a complete stop, but includes a stop at which the vehicle 1 cannot run with the driving force of the electric motor 26 at that time.

[0038]

The effects of the present invention are as follows.

According to the first aspect of the present invention, there is provided a rear wheel supported on a vehicle body, a motor capable of outputting a driving force for driving the rear wheel to travel, and an external operating force input and output from the motor. An electric straddle-type vehicle including an accelerator operation unit that allows the drive force to be increased or decreased, and a control device that controls the electric motor based on an operation on the accelerator operation unit.

The control device controls at least one of the driving force, the vehicle speed, and the vehicle acceleration when the accelerator operation section is operated by a certain manipulated variable, thereby controlling the rider to the vehicle body. It is designed to be smaller in the case of non-ride than in the case of ride.

For this reason, if the electric motor in the parked electric vehicle is in a driving state, if the rider attempts to operate the vehicle without riding without knowing this, the rider May inadvertently operate the accelerator operation unit.

However, even when the accelerator operation section is operated, in the case of non-ride, the driving force and the like output from the electric motor to the rear wheels are reduced, so that the vehicle starts suddenly. It is possible to prevent the user from running fast and trying to run at high speed.

Therefore, even when the electric motor of the electric vehicle is in a driving state without the rider's knowledge, when the rider handles the vehicle, the motor starts to run slowly by the driving of the electric motor, so that the electric motor is driven. It is possible to naturally know that the vehicle is in the driving state without causing any other trouble, and it is possible to smoothly handle the vehicle thereafter.

Further, even if the operated amount of the accelerator operation section is increased, the running of the vehicle does not become vigorous, so that the accelerator operation section should be operated while paying attention not to run vigorously. The maneuvering operation of pushing and moving the vehicle can be facilitated as much as it becomes unnecessary.

According to a second aspect of the present invention, the output of the driving force from the electric motor to the rear wheel is stopped when the vehicle speed becomes equal to or higher than a predetermined value during the non-ride.

Therefore, the occurrence of the inconvenience that the vehicle continues to run at an excessively high speed which is equal to or higher than the predetermined value during non-ride is more reliably prevented. Therefore, it can be more naturally known that the electric motor is in the driving state.

[Brief description of the drawings]

FIG. 1 is an overall side view of a vehicle.

FIG. 2 is an electric wiring diagram of a vehicle.

FIG. 3 is a flowchart of the control device.

[Explanation of symbols]

1 vehicle 2 Body 5 Front wheel 10 Rear wheel 11 Running surface 14 Rider 26 Electric motor 30 accelerator operation unit 35 Controller 49 Vehicle speed sensor 52 sheet sensor 53 Footrest sensor

Claims (2)

[Claims] 1. A rear wheel supported by a vehicle body, an electric motor capable of outputting a driving force for driving the rear wheel to travel, and a driving force output from the electric motor by inputting an external operating force. In an electric straddle-type vehicle including an accelerator operation unit capable of increasing and decreasing, and a control device for controlling the electric motor based on an operation on the accelerator operation unit, the accelerator operation unit is operated by a certain operated amount. At least one of the driving force, vehicle speed, and acceleration of the vehicle at the time is controlled by the control device, as compared to when a rider rides on the vehicle body.
A travel restricting device for non-riding in an electric saddle-ride type vehicle which is smaller when not riding. 2. The electric straddle-type vehicle according to claim 1, wherein the output of the driving force from the electric motor to the rear wheel is stopped when the vehicle speed becomes a predetermined value or more during the non-ride. Travel restriction device when not riding in the.