JPH0252233A - Operating device for chassis dynamometer - Google Patents

Abstract

PURPOSE:To make a chassis dynamometer for 4WD also usable as a testing device for two 2WD cars by allowing the chassis dynamometer for 4WD to have the function for two sets of the chassis dynamometer for 2WD. CONSTITUTION:The chassis dynamometers 14, 15 connecting to rollers 12, 13 are provided on each bed 10, 11. The chassis dynamometers 14, 15 are connected to switches 16, 17 respectively, and the chassis dynamometer 14 is connected to a main control panel 19 through a terminal for 4WD on the switch 16, while connected to a subcontrol panel 18 through the terminal for 2WD on the switch 16. The chassis dynamometer 15 is connected to the terminals for 2WD and 4WD on the main control panel 19 through the switch 17. So, when the test is made for two 2WD cars, the chassis dynamometers 14, 15 are connected to the subcontrol panel 18 and the main control panel 19, and the test for the 4WD for can be performed by connecting the chassis dynamometers 14, 15 to the main control panel 19.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a 4WD chassis dynamometer, and relates to an improvement in a driving device that can also be used as a chassis dynamometer for two 2WD vehicles.

B. Summary of the invention The present invention provides a 4WD chassis dynamometer for two cars.
4. A moving mechanism for either a front wheel or a rear wheel roller for use as a WD chassis dynamometer; W.D.
This is a saw equipped with a 2WD switch and a 2WD auxiliary operation device.

C. Conventional technology and issues In vehicle testing equipment, chassis dynamometers have
There is one for 4WD and one for 2WD.

The 4WD chassis dynamometer is operated with the front wheels 1a and rear wheels 1b of the vehicle 1 mounted on rollers 2a and 2b as shown in FIG. 4, and the ZWD chassis dynamometer is shown in FIG. front wheel 1a or rear wheel 1 of vehicle 1
b (in Fig. 5, only the front wheel 1a which is the driving wheel) is moved to the roller 2.
It is driven on the

There is no problem when testing a 4WD vehicle with a 4WD chassis dynamometer, but when testing a ZWD vehicle with a 4WD chassis dynamometer, the corresponding front wheel roller and rear wheel Only one of the wheel rollers is used, and the remaining rollers are locked so that they are not used.

Therefore, in a 4WD chassis dynamometer,
Only one 4WD vehicle or ZWD vehicle can be tested.

However, the 4WD chassis dynamometer is equipped with front wheel rollers, rear wheel rollers, etc., and as a testing device for one ZWD vehicle, there is a lot of waste in terms of equipment and space.

Therefore, the present invention provides a chassis dynamometer operating device that eliminates the above-mentioned waste and uses a 4WD chassis dynamometer as a test device for two 2WD vehicles.

D. Means for Solving the Problems The present invention, which achieves the above-mentioned objects, provides a chassis dynamometer for 4WD, which includes one of the front and rear wheel rollers, a chassis dynamometer connected thereto, and the like. and a chassis dynamometer connected thereto, a moving device for moving the remaining rollers and the chassis dynamometer connected thereto toward and away from each other so that the wheels of two separate cars, one roller and the remaining roller, are mounted; Connect one of the chassis dynamometers mentioned above to the sub-operation panel via the 2WD terminal of the 2WD/4WD switch, and connect it to the main controller via the 4WD terminal, and connect the remaining chassis dynamometer to the 2W
It is characterized in that it is connected to the 2WD terminal and 4WD terminal of the main operation panel through a D and 4WD switch.

E. EXAMPLES The present invention will now be described in detail with reference to FIGS. 1-3. In Fig. 1, two peds 10, 1 in the front and rear
A pair of rollers 12 and 13 are rotatably provided on each ped 1, and chassis dynamometers 14 and 15 are provided on each ped 10 and 11 connected to the rollers 12 and 13, respectively.

The chassis dynamometers 14 and 15 each have a switching device 16
. There is. Further, the chassis dynamometer 15 is connected to a 2WD terminal and a 4WD terminal of the main operation panel 19 via a switch @17. Therefore, 2WD
For testing two cars, use a chassis dynamometer of 14°1.
5 is connected to the sub-operation panel 18 and the main operation panel 19, and chassis dynamometers 14 and 15 are connected to the main operation panel 19 when testing a 4WD vehicle.

For this reason, in the case of testing a 4WD vehicle, the vehicle is operated only by the main operation panel 19, but in the test of a zWD vehicle, the beds 10 and 11 are separated and the chassis dynamometer 14 is operated by the sub-operation panel 18. and chassis dynamometer 15
is operated on the main operation panel 19.

A chassis dynamometer for 4WD generally adjusts the wheel pace by fixing the front wheel roller and moving the rear wheel roller. In this embodiment, 2WD vehicle 2
In the stand test, since the front and rear rollers 12 and 13 correspond to the wheels of separate vehicles, it is necessary to further distance the front and rear rollers.

FIG. 2 shows a bed moving device for this purpose. FIG. 2 shows a moving mechanism for the bed 10 shown in FIG. In FIG. 2, rails 20 and 21 are laid along the moving direction so as to support the bed 10. A roller 20a for moving the bed 10 is mounted on the rail 20, and the tip of a support 20B for moving the roller 20a up and down is fitted therein. Support body 20b
The upper end of is connected to a rod 20e of a cylinder 20d via a lever 20c. Then, by hydraulically operating the rod 20e of the cylinder 20d, the roller 20a is placed on the rail 20 to make it movable, or the tip of the support 20b is brought into pressure contact to lock the movement. In the example shown in FIG. 2, the support body 20b and the roller 20a are integrally provided via a bearing, so when the support body 20b is locked, the roller 20a will float above the rail, but the bed 1
0 support can be provided by another roller on the rail 20.

On the other hand, a chain 2 is placed on the rail 21 in the center of the bed 10.
1a is provided, and this chain 21a is connected to the sprocket 2.
1b is designed to mesh with each other. sprocket l-21
b is connected to a reduction gear 21d of a motor 21c via a gear system. Therefore, when the motor 21c is driven, the sprocket 21b advances on the chain 21a, and the support body 20b is released from the rail 20 and the roller 21
If a is placed on the rail 20, the bed 10 will move.

As a result, not only the wheel base adjustment but also the roller 12
, 13 can be freely adjusted according to the length of the rail.

Figure 3 shows a 4WD chassis dynamometer connected to two 2WD chassis dynamometers.
An example of use in car testing is shown in Figure 3 (a).
is a combination of an FF car and an FR car, Figure 3 (bl is a combination of two FF cars)
Figure 3 (C) shows the test conditions of two FR cars.

F. Effects of the Invention As explained above in the embodiments, the present invention can be achieved by partially modifying the functions of the 4WD chassis dynamometer, that is, by simply adding a moving mechanism, an auxiliary operation panel, or an engine cooling fan. , the functions of two sets of 2WD chassis dynamometers can be obtained, and even when used in a ZWD vehicle, it can be used effectively without waste.

[Brief explanation of the drawing]

Figures 1 to 3 are one embodiment of the present invention, Figure 1 is an overall configuration diagram, Figure 2 is an explanatory diagram of the moving mechanism, and Figure 3 is a ZWD.
Figure 4 is a diagram of the combination of cars. FIG. 5 is an explanatory diagram of a conventional pet dynamometer. In the figure, 10.11 is a verad, 12.13 is a roller, 14.15 is a dynamometer, 16.17 is a switching section, 18 is a sub-operation panel, 19 is a main operation panel, and 20.21 is a rail. . moat

Claims (1)

[Claims] In a chassis dynamometer for 4WD, one of the front and rear wheel rollers, a chassis dynamometer connected thereto, and the remaining rollers and a chassis dynamometer connected thereto. and a moving device that moves one of the rollers toward and away from each other so that the wheels of two separate cars, one roller and the remaining roller, are placed thereon, and one of the chassis dynamometers is connected to a 2WD/4WD switch. Connects to the sub-operator via the 2WD terminal and 4
A chassis dynamometer, characterized in that it is connected to a main controller via a WD terminal, and the remaining chassis dynamometer is connected to the 2WD terminal and 4WD terminal of the main controller via a 2WD/4WD switch. Driving device.