JPH03173302A - Travel controller for motor car - Google Patents

Abstract

PURPOSE:To protect a main switch against burning by turning an operational switching mechanism ON based on a turn ON detection signal from a detecting circuit and information concerning the movement of an operating tool provided from a potentiometer, by means of a motor controller. CONSTITUTION:In order to establish direct interconnection with a main switch 11, a detecting circuit 14 provides a detection signal to a motor control means 10 only when the main switch 11 is changed over. Consequently, the motor control means 10 can control a switching mechanism such that the switching mechanism 15 is turned ON simultaneously with or only after turn ON of the main switch 11, regardless of the positional relation between the detection operating position for turn ON control between the main switch 11 and the switch mechanism 15 which varies through the movement of the operating tool 6 in a potentiometer P.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a potentiometer for detecting the operation position of a traveling operating tool, and as the traveling operating tool moves from the stop position to the traveling side, the driving electric power A power supply control means is provided that automatically operates based on information from the potentiometer when the main switch of the motor is turned on and operated, and as the travel operating tool moves from the stop position to the travel side, the travel electric motor The operation switch i of the travel control device is turned on and operated, and the travel electric motor is automatically increased or decreased by a rotation speed proportional to The present invention relates to a travel control device for an electric vehicle equipped with a motor control means that operates automatically.

[Conventional technology]

The above-mentioned electric vehicle is configured in such a way that, simply by operating a travel control tool, the electric travel motor rotates or stops, and the motor drive speed changes, allowing the vehicle to travel, change gears, and stop. . In addition, when the vehicle stops running, the main switch is turned off in addition to the motor switch mechanism for safety reasons.

Conventionally, in this type of electric vehicle, the operation position detected by the potentiometer is such that when the travel operation tool is operated from the stop position to the travel side, the power supply control means turns on the main switch. By setting the detection position so that the motor control means is located closer to the stop position than the operating position detected by the potentiometer, so that the motor control means turns on the operating switch mechanism with the operation of the main switch and the operating switch mechanism. The turning operation was made to be performed in a state where there was a timing difference in which the main switch turned on before the operation switch was turned on.

(Problem to be Solved by the Invention) Conventionally, when a travel control tool is operated, the vehicle body starts running immediately, and if responsiveness is to be improved, the travel control tool in the stopped position is moved until the motor actually starts rotating. Since it is necessary to reduce the operating speed that needs to be operated during operation, the detection operating position for the main input control f'fll and the detection operating position for the switch mechanism input control are very close to each other. As a result, the operating tool is operated at extremely high speed, and the main switch turning-on control ■ and the operating switch mechanism turning-on control are performed at close to the same timing, or the main switch is switched. When a failure occurs, the main switch may be turned on after the operation switch mechanism is turned on, resulting in burnout of the main switch due to the motor starting current.

SUMMARY OF THE INVENTION An object of the present invention is to provide a control f[Il device that has good responsiveness and is difficult to include a switch.

[Means for Solving the Problems] According to the electric vehicle traveling device disassembly device according to the present invention, in order to achieve the following, in the above-described at the beginning, the main switch is A detection circuit is provided which detects the turning on of the switch and outputs a detection signal to the motor control η1 stage, and the motor control f111 means receives the turning detection signal from the detection circuit and the hyperactive clearing of the operating tool l from the potentiometer. control means for turning on the operation switch mechanism based on the information. The functions and effects thereof are as follows.

[For production]

The detection circuit is for direct linkage to the main switch.
A detection signal is output to the motor control means only when the main switch is switched. With this detection, the operation switch mechanism is turned on at the same time as the main switch is turned on, regardless of the proximity or separation of the detection operation position for the main entry system fIII using the potentiometer and the detection 1 position for the control with the switch mechanism. With the operation switch mechanism turned on only after the main switch is turned on, the motor control '41■ means turns on the switch [i'a control i
You can do Tl.

[Effects of the Invention] In order to operate the switch mechanism of the motor control means based on the detection signal from the detection circuit, the detection operation position for operating the main switch and the detection operation position for operating the switch mechanism are brought as close as possible. At the same time, bring it as close to the stop position as possible,
As the driving operation tool is operated, the vehicle body can be moved in response to the operation, and in addition, the main switch can be prevented from being turned on after the operation switch mechanism is turned on. It has been made to be more durable and less likely to cause damage.

[Example] Next, an example of a skill level is shown.

As shown in No. 4 and 4, one free-wheeling front vehicle φ2 (1) is mounted so as to be swing-steering operated by an fA rif handle (2), and a pair of left and right rear wheels (3), (
3) is connected to a driving electric motor (
A driver's seat (5) is attached to the vehicle body which is attached to be driven by a driving electric motor (M) and a battery (5) as a power source for a direction indicator (not shown), etc.
This is a small electric tricycle mainly intended for use by the elderly.

To enable vehicle running operation, a pair of left and right running operating tools (6), (6) are formed on the operating handle (2) so that they can be oscillated by gripping them together with the operating handle (2). When installed, the travel control device is constructed so that the electric motor (gate) is operated by swinging operation of one of the travel operating tools (6), (6) as shown in FIG.

That is, one rotary potentiometer (P) is linked to the pair of traveling operating tools (6), (6) so that it can be operated by either traveling operating tool (6), and this potentiometer (P) Object travel control tool (6
) is configured to detect the operating position and to electrically take out the detection results.

Is the potentiometer (P) on the traveling side? '[II Mechanism (C)
The travel control mechanism (C) is connected to the operation circuit (7) of the electric motor (M) via the power supply control means (8),
rr11 reverse setting means (9) and motor control means (10
), etc., and is composed of a microcomputer. The power supply control means (8) is a potentiometer (
By automatically outputting a switch operation command signal to the drive circuit (12) of the motor power relay type main switch (11) based on information from the main switch (
11) is configured to perform the automatic switching operation, and
The main switch (11) is automatically turned on and operated as the travel operating tool (6) is moved from the stop position (ST) to the travel side. Motor control means (1
0) is a detection circuit (14) that detects the signal from the potentiometer (1)), the pulse signal from the pulse oscillation means (13), and the on/off state of the main switch (11).
for operating the motor based on each of the detection signals from the
The device is configured to operate the operation switch mechanism (15) and increase/decelerate the electric motor (M) by automatically outputting a switching signal and a pulsed operation signal to the electric field transistor type operation switch mechanism (15). At the same time, when the travel operation tool (6) is operated from the stop position (ST) to the travel side, the operation occurs simultaneously with the operation of this operation tool and when the main switch (11) is turned on, or afterward. The operation switch mechanism (15) is automatically turned on and operated when the operation switch II (15) is switched to ON at The motor (1) is configured to be operated to speed up or slow down compared to before operation.

When the forward/reverse selector (16) is switched, the forward/reverse setting means (9) outputs a predetermined switching signal to the drive circuit (18) of the forward/reverse switch mechanism (17) to change the forward/reverse direction. By operating the changeover switch mechanism (17), the electric motor (G) can be rotated in a rotational direction corresponding to the position of the operating tool of the forward/reverse changeover (16). be. In addition, travel control equipment (
6) is operated to the stop position (ST), the forward/reverse switching inch mechanism is activated based on the information from the potentiometer (F)) and giving priority to the information G from the forward/reverse switch (16). (17) to neutral and operate the electric motor (
, 1) is configured to suppress non-driven rotation.

In other words, 0iI due to the operation of the forward/reverse switching 23 (16)
By switching the reverse changeover switch mechanism (17),
Select and set the drive rotation direction of the electric motor (M) to the forward or reverse side. Then, press either the left or right travel control tool (
When 6) is swung from the stop position (ST) to the running side,
When the main switch (11) is turned on, at the same time as this switch is turned on, or at a timing delayed by the time required for the travel control Jffl[c] to process the signal, the main switch (11) is turned on. Is it a running system? If a delay is programmed in the 111 mechanism (C), the main switch (1
1), the operation nullch mechanism (15) is switched to the ON position with a delay from the activation time of 1), and the motor control means (10) sets the drive rotational speed corresponding to the operating position of the travel operating tool (6). The operation switch mechanism (15) is operated intermittently to obtain the set rotational speed, and the electric motor (M) is driven in a predetermined rotational direction at a predetermined speed to move the rear wheels (3) to a predetermined forward or reverse side. It is driven at rotational speed. Then, when the traveling operating tool (6) returns to the stop position (ST) due to its self-restoring force, the operating switch mechanism (
15) is turned off and the drive of the electric motor (gate) is stopped, and both the main switch (11) and the forward/reverse switching mechanism (17) are turned off to ensure that the motor stops. be.

As shown in FIG. 1, the detection circuit (I4) is
When the sui nochi (11) is off, the main switch (1
1) connects to the battery (BT) and inputs the H signal, and when the main switch (11) is turned off, the connection to the battery (BT) is released by the main switch (11) so that the L signal is input manually. In addition to directly linking the main switch (11), the input H signal is converted to an L signal by the N07 circuit (19) and output to the motor control means (10), and the input L signal is connected to the N07 circuit (19). 1
9), the signal is converted into an H signal and output to the motor control means (10). In other words, when the main switch (11) is turned on by inputting the H signal,
Moreover, the main switch (11) is determined to have been turned on by the input of the L signal, and the main switch (11) is turned on.
Due to the direct link to 1), care has been taken to ensure that the predetermined detection is carried out with high precision at the same time as the actual switching of the main switch (11).

The braking control means (20) shown in Fig. 1 uses a contact sensor or an ultrasonic sensor to detect when the front bumper or bumper comes into contact with a traveling obstacle or when the vehicle body approaches a traveling obstacle. Based on the information, the electric field transistor type brake switch mechanism (21) is automatically turned on and operated to brake the electric motor (M).

To construct the vehicle body, a front wheel housing is formed by a front housing part (22a) of a resin vehicle body main frame (22) made of a mixture of polypropylene resin sheet and glass fiber in the shape shown in FIGS. 2 and 3. Also, the rear housing part (22b) is configured to form a morph housing, and the step part (22C) is configured to form a driving step, and is attached to the vehicle main frame (22) by insertion at the time of creation. The handle mounting bracket (23), the seat mounting column (24), and the pair of left and right frame mounting bosses (25), (25) are attached to the handle shaft (25).
26) or driver seat (5) or rear wheel support frame (
27).

In addition to electric tricycles for the elderly, the present invention can also be applied to various small electric vehicles such as electric wheelchairs and golf cars.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the travel control device for an electric vehicle according to the present invention, in which FIG. 1 is a travel control system diagram, FIG. 2 is a plan view of the vehicle main frame, and FIG. 3 is a side view of the vehicle main frame.
FIG. 4 is a side view of the entire electric three-wheeled type. (6)...Traveling operation tool, (8)...Power control means, (10)...Motor control means, (
11)... Main switch, (14)...
...detection circuit, (15) ...operation switch mechanism, U) ... electric motor for driving, (11) ...
...Botensimeter, (ST) ...Stop position.

Claims (1)

[Scope of Claims] A potentiometer (P) is provided to detect the operating position of the traveling operating tool (6), and a potentiometer (P) is provided to detect the operating position of the traveling operating tool (6).
When moving from T) to the travel side, the electric motor for travel (M
) is provided with a power supply control means (8) that automatically operates based on information from the potentiometer (P) to turn on and operate the main switch (11) of the travel operating tool (6).
) is moved from the stop position (ST) to the travel side, the operating switch mechanism (15) of the electric motor for travel (M) is turned on and operated, and the operation switch mechanism (15) is operated in proportion to the operation stroke of the travel operation tool (6). The traveling electric motor (M)
motor control means (1) that automatically operates based on information from the potentiometer (P) to increase or decelerate the motor;
0), which is directly connected to the main switch (11) to detect the turning-on of the main switch (11) and send a detection signal to the motor control means (10). Detection circuit to output (14
), and the motor control means (10) controls the operation switch mechanism (1) based on the input detection signal from the detection circuit (14) and the operating tool movement information from the potentiometer (P).
5) A travel control device for an electric vehicle which is a control means for performing the turning operation.