FI108317B - Additional equipment for testing motorcycle with brake dynamometer - Google Patents

Description

108317

Accessory for testing motorcycle with brake dynamometer - Tillaggsutrustning för test-Ning av motorcykel med bromsdynamometer

The invention relates to an accessory for testing a motorcycle with a brake dynamometer for four-wheeled vehicles 5.

Test stations use current known brake dynamometers to measure the braking power of four-wheel vehicles. As of the beginning of 2001 or 2002, the Finnish Vehicle Administration 's instruction that two - wheeled motor vehicles (motorcycles, mopeds) must undergo an annual roadworthiness test, in which case their brake performance is also to be measured. In this application, the term "motorcycle" is used to mean all two-wheeled motor vehicles.

The current known brake dynamometers are designed to measure the braking power of cars and trucks. The dynamometer automation is constructed so that both wheels of the axle under test must be on the track and the center rollers (sensor rollers) must be depressed in order to start the electric motors driving the track. The dynamometer is then ready for measurement, allowing braking to begin.

In braking situations, the braking performance of the right and left wheels is measured by means of torque sensors connected to the rollers. The braking power is transmitted to the dial, from which it is possible. brake performance read. Boundary sensors for the right and left center rolls, which indicate whether the center rolls 20 are depressed, as well as the roller guards of the tracks, are connected in series. The rotation guard stops the operation of the device if the wheel on the roller is locked, ie the rollers start slipping on the wheel. In other words, if one of the set of rolls to slip (pyörimisvartija triggers off) or either side of the limit open sensor, the two, left and right set of rollers are stopped. . simultaneously.

It is an object of the invention to provide a solution that enables four-wheel drive vehicles. butter brake dynamometer for testing two-wheel vehicle brakes.

To achieve this object, an accessory device according to the invention for testing a motorcycle brake dynamometer for four-wheeled vehicles has the characteristics defined in claim 1. Other claims are defined in accordance with the invention. various embodiments of the accessory.

"·” * · This patent application relates to passenger or heavy vehicle brakes

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,: removable by hand over known brake dynamometer used for power measurement. ·. : and an accessory to be installed. The accessory makes it possible to measure the braking power of a two-wheeled motor vehicle.

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The attachment is equipped with an auxiliary wheel to be mounted on one of the tracks, which causes the other track to be ready for operation. When the wheel of a two-wheeled vehicle is driven to the first rack, the rack starts. In this case, the braking performance can be measured and read either from the pointer display of the right or left track (depending on installation flexibility) or, in the case of 5 processor-based dynamometers, from a display monitor.

The current brake dynamometer cannot be safely operated without the corresponding brake. an accessory for measuring the braking power of a two-wheeled vehicle. The accessory is also cheaper than the special brake dynamometers made only for two-wheelers on the market, as the accessory makes it possible to utilize the existing brake testers.

The invention and an embodiment thereof will be described in more detail below with reference to the accompanying drawings, in which: Figure 1 is a schematic side, front and top view of an embodiment of the invention; and Figure 2 schematically illustrates the use of the device of

The brake dynamometer accessory shown in Figures 1 and 2 consists of a steel or light metal body 1 provided with guard rails 2, test beams 3a and foot rails 3b made of Turk Kippel.

The attachment is equipped with a pair of transmission wheels 4 and an actual dynamometer operating-20 auxiliary wheel 9. In addition, the device has a handle 5 for moving the device and adjusting the auxiliary wheel distance.

The attachment generally consists of a unitary frame structure 1, in which the distance of the auxiliary wheel 9 from the actual frame, however, can be adjusted telescopically to the frame 1. _. associated extension 1 'as indicated by the arrow T in the figures.

The invention operates in connection with a known four-wheel brake dynamometer ** "(Fig. 2). The accessory is moved from the handle 5 by the wheels 4 onto the brake dynamometer. The brake dynamometer has a body part 8, a first bogie 6a and its between the first sensor roll 7a and the second track 6b and a second track 7b between its rollers. The accessory is positioned such that the space for the test wheel 10 remaining between the guide beams 3a and the foot racks 3b becomes the first track 6a and the track 7a and the peripheral device on the auxiliary wheel 9 enters the second set of rollers 6b and presses it onto the known '' nislintelan 7b down the test wheel 10 is brought into position as indicated by the arrow P, and the tester 12 must be tested by taking a motorcycle or similar vehicle 11 in place jaloil-:.. '·. · Launch support for footrests 3b When wheel of vehicle under test 11 10 presses the first; ': 35 down on the sensor roll 7a and the accessory auxiliary wheel on the second sensor roll 7b, the brake dynamometer is operational.

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The frame structure of the accessory according to the invention may be of another type. Only the operating principle is the most important.

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Claims (5)

An accessory for testing a motorcycle with a brake dynamometer for four-wheeled vehicles, characterized in that it comprises a run-5 gon (1, Γ) mounted on a brake dynamometer (8) having means (3a) disposed on the first roller (6a, 7a) of the brake dynamometer. , 3b) for guiding the vehicle under test (11, 10) in position (P) and supporting it during the test, and for the auxiliary wheel (9) mounted on the chassis and adjustable to the second track (6b, 7b). An accessory according to claim 1, characterized in that the means for guiding and supporting the vehicle under test (11) include guide beams (3a) and foot racks (3b). An accessory according to claim 1, characterized in that the frame (1, Γ) is adjustable in width (T) to ensure that the auxiliary wheel (9) is suitably located on the second track (6b, 7b). Accessory according to Claim 1, characterized in that it further comprises guard rails (2). 20 4, 108317 Accessory according to Claim 1, characterized in that it further comprises wheels (4) for moving the accessory. • * · * i * · ...% 5 108317