JPH09198140A - Riding golf cart - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a golf cart avoiding a starting fault in any environmental situation by reducing the engine load at the time of starting. SOLUTION: This cart is formed to be an engine type and is equipped with a starting motor and a dynamo for battery charge or is equipped with a starter/ dynamo capable of sharing the starting motor and the dynamo for battery charge. The operation of the charging dynamo is controlled to stop until an engine is started by means of a starting motor to start this cart to reach a fixed velocity or the number of revolution of the engine reaches a fixed value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to control of a dynamo at the time of starting and starting an engine-type riding golf cart.

[0002]

2. Description of the Related Art Conventionally, various types of golf carts for golf courses have been provided. For example, a hand-push type that uses human power from a caddy as a power source, and a non-ride type or a ride type that uses an electric motor or an engine as a driving force are widely used.

In response to the shortage of caddies, there are more and more so-called self-plays in which a player operates a golf cart to make a round.
On the other hand, the location conditions of golf courses are becoming more and more stringent, and the golf courses are often opened in mountainous areas and the courses are often up or down. Therefore, in the case of self-play, it is desired that the player himself / herself be able to ride in a golf cart and move. In particular, an elderly golf cart requires a passenger golf cart. Therefore, recently, a two-seater golf cart or a four-seater golf cart has come into service.

FIG. 1 shows an external view of a four-seater riding golf cart of the type developed by the present applicant. This riding golf cart is an engine-driven type with automatic and manual switching means, and two people can ride in each of the front and rear. And, a golf bag can be loaded in the rear part, and a roof for sun protection and rain protection is installed in the upper part.

A control system diagram of the riding golf cart is shown in FIG.
As shown in FIG. 2 and 3 are diagrams in which the microcomputer 2 of the control box 1 is divided into left and right, and a combination of both the figures is an overall view of the control system system diagram.

The control system is roughly composed of a microcomputer 2 of a control box 1, an operating section 3, a steering section 4,
The sensor unit 5, the power supply unit 6, the engine unit 7, the parking unit 8 and the main brake unit 9 are included.

When the passenger golf cart having such a structure is automatically driven, the automatic driving mode is set by setting the automatic operation switching lever to "automatic". At that time, it detects the induced current flowing in the loop line buried along the cart road, reads the magnet, and runs on the cart road while performing automatic piloting, automatic acceleration / deceleration, and automatic stop. You can also start and stop at any place using the remote control or the send / stop button. In addition, when a danger is detected by various safety devices, an emergency stop is made.

When the automatic operation switching lever is set to "manual",
In the manual driving mode, the player can operate the steering wheel (steering) in the same way as a normal riding cart to drive forward and backward.

[0009]

These passenger golf carts mainly use an engine as a drive source, and the start and stop are repeated each time each stroke is played, not to mention the initial start. Used in the situation. In any situation, the vehicle must be able to start, start, and operate without any problems.

Normally, the engine is started by the starter motor, but when starting the engine, the input current to the starter motor becomes several tens of amperes or more, and the load lowers the voltage of the battery. Particularly in cold weather, the engine is cold, the viscosity of the engine oil decreases, and the input current to the starter motor may increase to 100 amperes or more.

Therefore, the battery must be charged by the dynamo at all times while the engine is running. However, the battery charging dynamo is a load on the engine because it uses the rotational force of the engine to generate electricity. In particular, since a starter motor having a high battery usage rate is used at the time of starting the engine, the required power generation output of the battery charging dynamo after the engine is started is temporarily high, which causes a heavy load on the engine.

However, as the engine for the golf cart, a small engine is used due to reasons such as noise, size and cost. As an example, the maximum engine output is 9
The required horsepower of the dynamo is 2 at the maximum, while it is about Ps.
Since Ps is required, it is a relatively large load on the engine. In particular, the load is large at the time of starting.

Therefore, at the time of starting, especially in the case of a full ride, the weight of the golf cart is about 800 kg, and when starting on a steep slope, the engine load is large and there is a situation in which it cannot start. There were some inconveniences such as hindering the play. Therefore, it is an object of the present invention to reduce the engine load at the time of starting the riding golf cart and avoid starting defects.

[0014]

In order to solve the above problems, a riding golf cart according to claim 1 of the present invention is an engine type riding golf equipped with a starter / dynamo capable of sharing a starting motor and a battery charging dynamo. Control to start the engine by the starter / dynamo in the cart, stop the operation of the starter / dynamo once the engine start is detected, and restore the operation of the starter / dynamo when the golf cart starts and reaches a certain speed. Can be achieved by

A passenger golf cart according to claim 2 of the present invention is an engine-type passenger golf cart equipped with a starter / dynamo capable of sharing a starting motor and a battery charging dynamo. When the start of the vehicle is detected by the engine speed, the operation of the starter / dynamo is stopped once, and when the golf cart departs and reaches a certain speed,
This can be achieved by controlling the operation of the dynamo to restore it.

A passenger golf cart according to a third aspect of the present invention is an engine-type passenger golf cart equipped with a starter / dynamo capable of sharing a starting motor and a battery charging dynamo, wherein the engine is started by the starter / dynamo. When the start of the engine is detected or the start of the engine is detected by the engine speed, the starter /
Stop the dynamo, start the golf cart, and start the engine when the engine speed reaches a certain speed.
This can be achieved by controlling the operation of the dynamo to restore it.

A passenger golf cart according to a fourth aspect of the present invention is an engine-type passenger golf cart equipped with a starting motor and a battery charging dynamo, the engine is started by the starting motor, and the golf cart departs at a constant rate. This can be achieved by controlling so that the operation of the charging dynamo is stopped until the speed reaches.

According to a fifth aspect of the present invention, in the engine type riding golf cart having a starting motor and a battery charging dynamo, the engine is started by the starting motor and the engine is rotated at a constant speed. It can be achieved by controlling the charging dynamo to stop until it reaches

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described with reference to FIGS. 4, 5 and 6. In addition, in FIG. 4 and FIG. 5, the same reference numerals are given to those having the same function. FIG. 4 shows a drive circuit of a starter motor which is a starting motor in the power supply unit 6. In the figure, 2 is a microcomputer, 10 is a battery, 11 is a starter motor that also serves as a dynamo, 12 is a key switch, 13 is a power relay, 14 is a starter relay driver, 15 is a starter relay, and 16 is a contactor. In this example, the starter motor that also serves as the dynamo is used, but the starter motor and the dynamo may be separately provided.

When the key switch 12 is turned to the "ON" side, the control circuit is energized via the power relay 13 and the microcomputer 2
Starts. The microcomputer 2 checks when the brake system (wire extension, motor operation, home switch, limit switch, etc.), accelerator system (motor operation check), sensors (cart guard, bumper switch, etc.) are activated. I do. Here, the diode is for protecting the control circuit when the battery is reversely connected.

When there is a start operation, the contactor is actuated via the starter relay 15 in response to a command from the microcomputer 2, and the starter motor 11 is rotated to start an engine (not shown). When the engine speed or the speed of the golf cart increases, the starter motor 11 shifts to dynamo operation and supplies power to the control system while charging the battery 10.

Next, the operation of the engine section 7 will be described with reference to FIG. In order to stop and start the engine 17, the main relay 20 short-circuits and opens the plug terminal (E terminal) to the frame (0V). The E terminal is connected to the ignition circuit of the spark plug inside the engine 17, and when the E terminal is short-circuited to the frame, the ignition stops and the engine stops, and when released, the ignition becomes possible and the starter can start the engine. Become.

The key switch 12 and the main relay 20 are connected to the E terminal. Key switch 12 "OFF"
At the time of, the engine is stopped by short-circuiting to the frame and "ON"
At this time, the engine can be started and stopped by controlling the main relay.

While the engine is rotating, a few 100V is applied to the E terminal.
The plug ignition pulse is generated, and the engine speed is detected by shaping the waveform, importing it into the microcomputer, and measuring the cycle.

Next, the operation of the present invention will be described with reference to FIG. When the start switch 21 or the remote controller is operated and a start signal is output, the starter relay 15
Is turned on, and the starter motor 11 that also serves as a dynamo starts driving. Along with that, the engine starts starting,
By gradually pulling the throttle, the number of revolutions is increased. During this time, the parking brake and the main brake remain held.

The engine speed increases, 1100 rpm
When it reaches a certain level, the starter motor 11 is disconnected, the parking brake is released after about 1 second, and the golf cart starts moving while gradually loosening the main brake. The engine speed rises and the engine speed is about 3000 rpm
Then, the starter motor 11 enters the dynamo operation, but the speed of the golf cart is about 3K.
Since the starter motor 11 is separated from the engine until m / h, no power is generated. When the speed reaches about 3 Km / h, the starter motor 11 is connected to start charging the battery.

Even when stopped, when the stop signal is output, the throttle pull amount is returned, and at the same time, the main brake is operated to decelerate the golf cart. When the speed of the golf cart drops to about 3 km / h, the dynamo operation is stopped.

As described above, in the riding golf cart of the present invention, in the engine type riding golf cart equipped with the starter / dynamo that can share the starting motor and the battery charging dynamo, the engine is started by the starter / dynamo. When the start of the engine is detected or the start of the engine is detected by the number of revolutions of the engine, the starter / dynamo operation is temporarily stopped and the golf cart starts to reach a certain speed or the number of revolutions of the engine is not less than a certain value. When it reaches, the starter / dynamo operation is controlled to be restored. As another embodiment, in an engine-type riding golf cart equipped with a starting motor and a battery charging dynamo, the engine is started by the starting motor until the riding golf cart departs and reaches a certain speed or The operation of the charging dynamo may be controlled to stop until the rotational speed reaches a constant value.

[0029]

As described above, according to the present invention, by starting the engine with the starter motor and stopping the operation of the charging dynamo until the engine is started, the engine load at the time of starting is reduced and the starting failure is prevented. Can be avoided.
As a result, it is possible to start and start without fail, not only in the first start, but also in the situation where the player repeatedly starts and stops with each stroke, as in the round.
For example, it is possible to provide a passenger golf cart capable of reliably starting and starting the engine under any environmental condition such as a steep slope.

[Brief description of drawings]

FIG. 1 is an external view of a riding golf cart.

FIG. 2 is a control system diagram of a riding golf cart.

FIG. 3 is a control system diagram of a riding golf cart.

FIG. 4 is a drive circuit of a starter motor in a power supply unit.

FIG. 5 is a schematic diagram of an engine unit.

FIG. 6 is a traveling control sequence.

[Explanation of symbols]

 1 ... Control box 2 ... Microcomputer 3 ... Operation part 4 ... Steering part 5 ... Sensor part 6 ... Power supply part 7 ... Engine part 8 ... Parking part 9 ...・ Main brake 10 ・ Battery 11 ・ Dynamo starter motor 12 ・ Key switch 13 ・ Power relay 14 ・ ・ Starter relay driver 15 ・ ・ Starter relay 16 ・ ・ Contact 17 ・ ・ Engine 18 ・ ・ Solenoid 19 ..Choke driver 20..Main relay 21 ../ Start switch

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshihiro Nomura 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Koji Morimoto, 2-chome, Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Inventor Kazuhisa Matsumoto 2-5-5 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (5) No. 5 Inventor, Michio Koji 2 Keihan Hondori, Moriguchi City, Osaka Prefecture 5-5, Sanyo Electric Co., Ltd.

Claims (5)

[Claims] 1. An engine-type riding golf cart equipped with a starter / dynamo capable of sharing a starter motor and a battery charging dynamo. When the engine is started by the starter / dynamo and the start of the engine is detected, the starter / dynamo operates once. Is controlled so that when the golf cart departs from the vehicle and reaches a certain speed, the operation of the starter / dynamo is restored. 2. An engine-type riding golf cart equipped with a starter / dynamo capable of sharing a starting motor and a battery charging dynamo, wherein the engine is started by the starter / dynamo, and once the start of the engine is detected by the engine speed, the starter is once started. / A riding golf cart characterized in that the operation of the dynamo is stopped, and when the golf cart departs and reaches a certain speed, the operation of the starter / dynamo is restored. 3. The riding golf cart according to claim 1, wherein when the engine speed reaches a certain speed or more, the starter / dynamo operation is controlled to be restored. 4. An engine-type riding golf cart equipped with a starting motor and a dynamo for charging a battery,
A riding golf cart, characterized in that the engine is started by a starting motor, and the operation of the charging dynamo is stopped until the golf cart starts to reach a certain speed. 5. An engine-type riding golf cart equipped with a starting motor and a dynamo for charging a battery,
A riding golf cart, characterized in that an engine is started by a starting motor, and control is performed to stop the operation of the charging dynamo until the engine reaches a certain number of revolutions.