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8171782 Test bench  
A test bench for simulating oscillations with at least one roller that has a running face on at least part of which a roadway covering is applied. The roller is rotatably mounted and supported by...
8001835 Method and device for dynamometer testing of a motor vehicle and vehicle components  
A method and a device for dynamometer testing of a motor vehicle, having a front end and a rear end and a right side and a left side, as seen in a driving direction, and/or vehicle components, by...
7926336 Dynamometer  
A dynamometer comprises a frame, an inertial flywheel, and a starter motor. The inertial flywheel is supported by the frame and the starter motor is movably mounted to the frame so as to be...
7921712 Dynamometer test apparatus and method for testing both transmissions and rear differentials  
A dynamometer-based test apparatus that includes a driving dynamometer which is rotatable between first and second positions thus allowing attachment to either a vehicle transmission from a vehicle...
7305864 Ball and socket joint for a motor vehicle  
A ball joint for a motor vehicle includes a housing (6) having a cavity (5), and with a ball pivot (1), which has a pin (2) and a joint ball (3) and which, with its joint ball (3), is mounted in...
7203602 Method for operating a roller test bench and roller test bench  
A method and an apparatus for operating a test bench, e.g. a roller test bench, for carrying out simulation drives of a vehicle placed on the test bench. At least one vehicle wheel contacts at...
7152463 Vehicle securing mechanism for a dynamometer  
A securing mechanism for attachment to a chassis dynamometer for securing a motor vehicle on the chassis dynamometer, the securing mechanism including a vehicle engaging component which, when the...
7104118 Vehicle test stand  
The invention relates to a vehicle test stand including a device for fixing a motor vehicle on the test stand. A loading machine is adapted to be coupled to the drive train of the motor vehicle,...
7100290 Method of measuring unilateral flow rate of vehicles  
The invention makes it possible to measure a lateral displacement amount of a vehicle accurately in a short time on a bench testing machine without damaging a vehicle body and tires. Respective...
6898965 Roller pair for a roller testing stand  
In a roller pair for a roller testing stand with two, commonly driven, rollers the distance of one of them which with respect to the other being adjustable, such as known in itself in a so-callead...
6877367 System and method for measuring brake mean effective pressure in a running vehicle  
The present invention provides a method for easily measuring a brake mean effective pressure of a running vehicle. An air flow sensor, a λ sensor and a data collecting apparatus are mounted to the ...
6834541 Engine testing apparatus and map preparing method for an engine testing apparatus/vehicle testing apparatus  
A map preparing method for an engine testing apparatus or a vehicle testing apparatus capable of preventing a peculiar driving state from being generated is provided. The method includes varying a...
6601441 Device and method for verifying the operation of a chassis dynamometer  
A test device and method for verifying the proper operation of a dynamometer is described. The inventive test device is portable and simple to operate, allowing dynamometer accuracy to be readily...
6598467 Method for analyzing the driving behavior of motor vehicles  
The present invention relates to a method for analyzing the driving behavior of motor vehicles on a roller type test stand, with the following steps: performance of a predetermined operating cycle...
6577973 Method and device for taking into account friction losses during the simulation of masses on stationary test benches  
To correct the loading moment due to the test bench related frictional losses in the simulation of masses on stationary test benches, a correction circuit (10) is connected to a weather detection...
6516287 Method and device for simulating the mass of motor vehicles placed on stationary test stands  
The invention relates to a method and an apparatus for the mass simulation of vehicle masses on a stationary roller test stand, wherein the simulation mass (msim) is determined from the test stand...
6405586 Dynamometer roller  
An improved roller 12 for a dynamometer 10 includes a plurality of equally spaced, congruent recesses 16 parallel to the longitudinal axis of the roller 12 and circumferentially positioned around...
6360591 Method of controlling a chassis dynamometer  
A method of controlling a chassis dynamometer (10) to simulate actual road conditions experienced by a vehicle (12) is disclosed. The chassis dynamometer (10) includes at least one actuator (14)...
6247357 Dynamometer for simulating the inertial and road load forces encountered by motor vehicles and method  
A chassis dynamometer includes a frame, a roll set for engaging the wheels of a motor vehicle and an eddy current brake/inertia simulating unit with a ferrous metal rotor wheel rotatably mounted on...
6079258 Method for analyzing the driving behavior of motor vehicles  
A method for analyzing the driving behavior of motor vehicle wherein a car's driveability is measured easily on a test stand by conducting tests with an actual vehicle to obtain measurement...
6044696 Apparatus for testing and evaluating the performance of an automobile  
Apparatus for testing and evaluating the performance of an automobile under simulated conditions includes torque applicators for connection to wheel shafts of an automobile and for applying torque...
6012329 Method and apparatus for testing tires on a motor driven roller set  
In the tire examination method before and after an alteration in the tire pressure a respective interferogram is produced of the tire surface using coherent radiation and the interferogram is...
5955662 Dynamometer and calibration technique thereof  
A dynamometer includes a pair of vehicle wheel-engaging rolls coupled through a clutch to a passive power absorption unit which includes a flywheel and an eddy current brake. A lift between the...
5861552 Chassis dynamometer  
A chassis dynamometer for testing motor vehicles in place includes a frame, at least one roll for engaging the wheel(s) driven by the vehicle engine and an eddy current brake/inertia unit in which...
5739427 Plate circulator and force measuring apparatus  
A plate circulator includes a plurality of plates, chaining means forming a circular body by connecting the plates in a loop, an engagement groove provided to surfaces of each plate in the circular...
5657227 Method and apparatus for simulating a mass or load on a stationary testing stand  
A torque moment is simulated in a rotary testing stand for test samples by providing a feed-back closed loop control circuit for controlling a torque moment generator. The feed-back control circuit...
5542290 Control system for chassis dynamometer for simulating road test of automotive vehicle  
A control system for a chassis dynamometer for bench testing vehicular performance, comprises at least one roller rotatably coupled with a vehicular wheel the roller to be driven by driving torque...
5533388 Apparatus for electromagnetically isolating an automobile  
An electromagnetic compatibility simulating apparatus for an automobile including an electromagnetically shielded cell having a wall dividing the interior of the cell into a first chamber for the...
5531107 Method and apparatus for establishing virtual inertia in a chassis dynamometer  
A vehicle dynamometer system having at least one roller mounted in a frame for engagement with at least one driven wheel of a vehicle includes an eddy current brake for, when actuated, applying a...
5522257 Suspended single roll dynamometer  
A suspended large, single roll dynamometer for use in a compact pit. The dynamometer includes a power absorption unit operably coupled to a pair of rolls. The rolls support the driven wheels of a...
5483823 Method and apparatus for inspecting various running control functions of a motorcar  
A running control function of a motorcar is inspected on an inspecting apparatus which is provided with rolls for mounting thereon each of wheels of the motorcar. The control function operates to...
5467646 Process and device for controlling the braking of four-wheel drive vehicles  
Process and device for controlling the braking of a brake bench of a wheeled vehicle having plural interconnected drive shafts, each shaft having a differential. One wheel on a shaft is driven in...
5465616 Method of inspecting various control functions of a motorcar  
A plurality of control functions of a motorcar are inspected by grouping the control functions into a first group having a function of accelerating at least one wheel and a second group having a...
5465612 Method and apparatus for testing motor vehicles under simulated road conditions  
A chassis dynamometer includes at least one roll for engaging the driven wheel of a motor vehicle and a power supplying and/or absorbing unit ("PAU") coupled to the roll. Speed and force sensors...
5452605 Dynamometer for simulating the inertial and road load forces encountered by motor vehicles  
A dynamometer for simulating the inertia and road load forces for motor vehicles is described. The dynamometer includes a moveable frame on which is mounted one or more rolls for engaging the...
5450748 Multiple function chassis dynamometer and method  
A simple, compact and inexpensive chassis dynamometer capable of performing a multiplicity of tests and of simulating a variety of conditions, including wind resistance, weight of the vehicle and...
5447060 Chasis dynamometer with improved torque measurement  
A chassis dynamometer is described which is especially adapted for road simulation. A torque transducer is connected in the roll assembly so that the torque signal is not influenced by bearing...
5402674 Method and apparatus for automatically restraining a vehicle on a test stand  
An apparatus and method for automatically restraining a vehicle on a vehicle test stand having at least one pair of rollers rotatably mounted to a frame comprises a restraining device movably...
5385042 Dynamometer and method for simulating vehicle road load and/or inertial forces while providing compensation for the parasitic losses of the dynamometer  
A dynamometer for testing engine powered vehicles including an induction motor coupled directly to the vehicle engine or the driven wheels thereof. A computer in response to the engine or wheel...
5323644 Traction control road simulator  
A traction control road simulator (10) is disclosed as having a separate electric motor (12) for controllably applying torque to each axle (14) of a vehicle (16), a speed sensor (46) for...
5311770 Frictionless bearing chassis dynamometer  
A frictionless bearing chassis dynamometer including a pair of laterally spaced-apart rolls adapted to be engaged and driven by a pair of wheels of a vehicle. A power exchange unit is disposed...
5269179 Vehicle testing apparatus  
Disclosed herein is a vehicle testing apparatus comprising a pair of brake clipers operable in response to the application of pressure fluid for applying torque in opposition to driving torque...
5193386 Tapered roller dynamometer  
Apparatus for retaining contact of a wheel having a first and second sidewall includes a first roller having a tapered body, the tapered body of the first roller having a larger diameter at the...
5193062 Automatic vehicle driving system and method of driving the same on chassis dynamometer  
In an automatic test vehicle driving system on a chassis dynamometer, a table between accelerator actuator stroke and engine output torque and a table between engine friction loss power and engine...
5154077 Chassis dynamometer  
A chassis dynamometer includes a load roller and a free roller both of which are driven by a tested object, such as, an automotive vehicle. The load roller is drivingly connected to a dynamometer...
5142902 Twin roller chassis dynamometer  
A twin roller type chassis dynamometer includes two coxially arranged load rollers and two coaxially free rollers. The two pairs of rollers are arranged parallel to one another. One of the free...
5136878 Air cooled dynamometer vehicle emissons test stand  
An air-cooled eddy current dynamometer for the use in a vehicle emissions test stand application. The dynamometer housing includes an air inlet manifold for drawing cooling air radially inwardly...
5101660 Method and apparatus for enabling two or four wheel drive vehicles to be tested under simulated road conditions  
A dynamometer apparatus and a method for testing two and four wheel drive vehicles under simulated road conditions is described. The apparatus includes a front roll and a rear roll for engaging the...
5090235 High accuracy wheel examining method and apparatus  
A method and apparatus for examining a wheel of a vehicle is provided. A support roller assembly for supporting thereon the wheel rotatably is provided to be movable translationally as well as...
5086647 Power testing apparatus  
A power testing apparatus includes a brake mechanism which is operated to brake an inertial load adjusting flywheel at a desired timing. A clutch is provided for controlling transmission of an...
Matches 1 - 50 out of 130 1 2 3 >