JPS61187513A - Radiator device of saddle-ride vehicle of motorcycle or the like - Google Patents

Abstract

PURPOSE:To suppress hot air, after it cools a radiator, from blowing a driver, by controlling a set temperature to a low degree, when a vehicle is in running, further to a high degree when the vehicle is stopped, in the case of the vehicle which operates a cooling fan when the temperature of radiator cooling fluid exceeds said set temperature. CONSTITUTION:A radiator device connects a cooling fan 15 respectively with a low temperature switch 19 and a high temperature switch 20 connected in parallel to a battery 16. And the low temperature switch 19 is connected through a relay 21 respectively with a clutch switch 22 and a neutral switch 23. In this way, the device, when it detects that a clutch is connected further a transmission is not in a neutral position, turns on the relay 21 by deciding a vehicle in a running condition. Here the device, when the vehicle is stopped, turns off the relay 21, controlling the cooling fan 15 to be switched from the low temperature switch 19 to the high temperature switch 20. And the device suspends operation of the cooling fan 15 before a temperature of radiator cooling fluid reaches the high set value.

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention is an object of the present invention in a saddle-ride type vehicle such as a motorcycle or a three-wheeled motorcycle, in which the rider does not feel discomfort due to hot air discharged from the radiator cooling fan when the vehicle is stopped. This invention relates to a device for doing so.

(Prior Art) For example, in a motorcycle, a straddle-type seat for a rider is generally provided on the upper part of the body frame, and a radiator for cooling the engine is provided below the front of this seat (for example, 37698).

Further, in order to further promote cooling of the engine by the radiator, there is a possibility of further constructing the engine as follows. That is, a cooling fan is installed to cool the radiator, and when the coolant in the radiator exceeds a preset temperature, the cooling fan is activated and outside air is forcibly supplied to the radiator. The hot air after being cooled by the cooling fan is discharged toward the rear.

(Problem to be Solved by the Invention) By the way, when the hot air is running, the temperature of the hot air decreases as it is agitated by the running wind, and the effect of heat on the rider is small, but when the rider is stopped, the running wind Therefore, the hot air reaches the rider without much temperature drop. This hot air may cause discomfort to the rider.

(Purpose of the Invention) This invention was made in view of the above-mentioned circumstances, and it is possible to ride the vehicle in a manner that prevents the rider from feeling uncomfortable due to the hot air discharged from the radiator cooling fan when the vehicle is stopped. The purpose is to improve comfort.

(Structure of the Invention) The feature of this invention for achieving the second object is to provide a motorcycle, etc., in which the cooling fan is activated when the coolant of the radiator exceeds a preset temperature. The radiator device for a riding vehicle is provided with a control means for setting the set temperature to be low when the vehicle is running and high when the vehicle is stopped.

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

In FIG. 1, 1 is a motorcycle, and a front fork 3 is supported at the front part of a body frame 2 of the motorcycle. A front wheel 4 is supported at the lower end of the front fork 3, and a bar handle 5 is attached to the upper end of the front fork 3.

Further, a rear arm 6 is pivotally supported at the rear of the vehicle body frame 2 so as to be vertically swingable, and a rear wheel 7 is supported at the swinging end of the rear arm 6.

A fuel tank 8 and a straddle-type seat 9 are provided at the upper part of the vehicle body frame 2. Further, a footrest 10 is attached to the lower part of the vehicle body frame 2 in correspondence with the seat 9.

An engine 12 is supported within the frame of the vehicle body frame 2,
This engine 12 drives the rear wheels 7. The engine 12 is water-cooled, and a radiator 14 for cooling the engine is attached to the front of the vehicle body frame 2 below the front of the seat 9.

Further, a cooling fan 15 is attached to the rear side of the radiator 14. A water pump (not shown) circulates the cooling fluid between the engine 12 and the radiator 14 to cool the engine 12. Further, when the cooling liquid exceeds a preset temperature, the cooling fan 15
is activated and outside air is sucked in. In this case, the temperature of the coolant is detected by a temperature sensor (not shown) provided in a conduit between the engine 12 and the radiator 14.

Then, the outside air sucked in by the foot cooling fan 15 is forcibly supplied to the radiator 14 (arrow A in FIG. 1).
), the engine 12 is cooled. In addition, this outside air is heated by heat exchange in the radiator 14, becomes hot air, and is discharged to the rear of the cooling fan 15, and this hot air flows toward the legs of the rider R (arrow B in Fig. 1). .

Referring to FIG. 2, the control means 18 for controlling the operation and stopping of the cooling fan 15 will be explained. The cooling fan 15 is connected to a low temperature switch 19 and a high temperature switch 20 which are connected in parallel to the battery 16.

The low temperature switch 19 is connected to a clutch switch 22 and a neutral switch 23 via a relay 21. If the clutch switch 22 detects that the clutch is connected and the neutral switch 23 detects that the transmission is not in the neutral position, it is determined that the vehicle is running and the relay 21 is turned on.
Turn N (on).

Further, the low temperature switch 19 is set to a low temperature (for example, 84°C), and when this set temperature is exceeded, the low temperature switch 19 is turned ON, and these relays
When both the low temperature switch 1 and the low temperature switch 19 are turned on, the cooling fan 15 is operated by the battery 16.

That is, during driving, when the temperature of the coolant reaches 84° C. or higher, the cooling fan 15 is activated, and the temperature of the coolant is maintained at a relatively low state. Therefore, the temperature of the engine 12 is maintained at a relatively low level. dripping

On the other hand, the high temperature switch 20 is set to a high temperature (for example, 114° C.), and when the set temperature is exceeded, the high temperature switch 20 is turned ON.

The cooling fan 15 is operated by the battery 16 .

That is, when the vehicle is stopped, the relay 21 is turned off, and the control of the cooling fan 15 is switched from the low temperature switch 19 to the high temperature switch 20.

This high temperature switch 20 has a coolant temperature of 114°C.
Since the cooling fan 15 is OFF until the high set temperature is exceeded, the operation of the cooling fan 15 is suspended until the set temperature is reached.

Therefore, when the vehicle is stopped, hot air is prevented from being discharged toward the rider R.

In the above embodiment, the cooling fan 15 is configured to operate via the low temperature switch 19 when the temperature of the coolant exceeds the set temperature while driving. , the vehicle speed is detected by the vehicle speed sensing circuit 24, and when the coolant temperature exceeds the set temperature and the vehicle speed exceeds the predetermined speed, that is, when the radiator 14 receives sufficient running air, the cooling fan is activated. 15 may be activated.

Furthermore, as shown by the dashed line in FIG. 2, the cooling fan 15 may be operated with a time delay via the delay circuit 25 after the temperature of the cooling liquid exceeds the set temperature.

By providing the vehicle speed sensing circuit 24 and the delay circuit 25 as described above, hot air is prevented from being discharged toward the rider R even when the frequency of starting and stopping is high, such as when driving on a congested road. .

(Effects of the Invention) According to the present invention, in a radiator device for a straddle-type vehicle such as a motorcycle, in which the cooling fan is activated when the coolant in the radiator exceeds a preset temperature, A control means is provided that lowers the cooling fan when the vehicle is running and raises it when the vehicle is stopped, so that the cooling fan stops operating as much as possible when the vehicle is stopped. Therefore, hot air after cooling the radiator by the cooling fan is suppressed from being discharged toward the rider. Moreover, in this case, since the engine is cooled to a lower temperature while the vehicle is running, the transmission of hot air from the engine to the rider is also suppressed.

As a result, when the vehicle is stopped, the hot air is suppressed from causing discomfort to the rider, thereby improving riding comfort.

[Brief explanation of drawings]

The figures show an embodiment of the invention, with FIG. 1 being a side view of a motorcycle, and FIG. 2 being an electrical block diagram. 1 fist/motorcycle (straddle type vehicle), 9...seat, 12
・War engine, 14. Radiator, 15. Cooling fan, 18. Φ control means, No. 80 feeder. Patent applicant Yamaha Motor Co., Ltd. Figure 2

Claims (1)

[Claims] 1. A radiator is installed below the front of the rider's seat to cool the engine, and a cooling fan is installed to supply cooling air to the radiator and exhaust the cooled hot air toward the rear.The radiator's cooling fluid is preset. In a radiator device for a straddle-type vehicle such as a motorcycle, the cooling fan is activated when the temperature exceeds a set temperature.
A radiator device for a straddle-type vehicle such as a motorcycle, characterized in that a control means is provided for setting the temperature at a low temperature when the vehicle is running and high when the vehicle is stopped.