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7310996 |
Sensor
A sensing system having at least one magnetic or inductive sensor for determining the position of a piston. The sensor system has a positioning device with which at least two sensing positions for...
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7305870 |
Apparatus for testing a moving vehicle
An apparatus and method is provided for testing at least one performance characteristic of a vehicle.
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7127939 |
Measuring method on an electric motor and measuring device for an electric motor for determining the fly height and/or axial play
To provide a measuring method on an electric motor with a rotor and a stator for determining the fly height and/or axial play, the rotor being mounted, and in particular fluid-mounted, on the...
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7107829 |
Powertrain testing apparatus
A powertrain testing apparatus for testing performance testing of a powertrain provided with an input shaft and an output shaft that are disposed on different axes. The testing apparatus includes...
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7058488 |
Vehicle testing apparatus for measuring a propensity of a vehicle to roll over
A vehicle testing apparatus for subjecting a vehicle to a compound force includes a support disposed in a plane for supporting the vehicle, and a mechanism coupled to the support for moving the...
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7036360 |
Powertrain dynamic tilt test rig
A test rig is provided for dynamic or static testing of a vehicle powertrain apparatus during operation in varying attitudes. A specific embodiment includes inner and outer frames carried one...
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6962074 |
Method for testing a stabilizing system of a motor vehicle by tilting and rotating the vehicle
A dynamic test fixture has a support frame ( 3 ) whose dimensions ( 31 ) in the direction of a transverse axis (y) are smaller than a distance between the wheels of a vehicle ( 8 ). Via a first...
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6877368 |
Isolation and loading arrangement for differential gear system under test
An arrangement for isolating a differential axle system while it is subjected to a test process for noise, also reduces the noise contribution of the differential gear set by coupling a load...
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6820472 |
Test rig and test system for testing a power transmission device
A test rig for testing a power transmission device, having an input shaft, an output shaft and a casing, may include a first assembly having a coupling shaft that is connected by a rigid and...
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6807852 |
Test bench for testing a power transmission device and a test system comprising such a test bench provided with a power transmission device
A test bench for testing a power transmission device may include, a first assembly that can be connected to an output shaft of the power transmission device to be tested, a second assembly that can...
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6766684 |
Double flank rolling tester
A tester for backlash-free rolling of gears with a mating gear generally comprises a base, a stationary spindle on which a test gear can be mounted and which can be driven by a motor; an...
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6766683 |
Load-adaptive control system, in particular for transport devices and used in aircraft
The invention relates to a monitoring unit ( 5 ) for monitoring a first control value (I nom ) for overshooting or undershooting of a threshold value (I max ) with the first control value (I nom )...
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6748796 |
Procedure for determining the dynamic behavior of a vehicle on a test bench
A method for measuring the displacement of a vehicle wheel relative to the frame thereof or relative to a fixed point of reference. The vehicle is located on a test stand in which the wheel is...
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6736002 |
Noise testing system with temperature responsive sensitivity
An arrangement for isolating an energy transfer system while it is subjected to a test process for noise. The energy transfer system is of the type having an energy input and at least one energy...
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6684688 |
Arrangement for simulating force effects on a wheel of a motor vehicle resulting during operation of the motor vehicle
An arrangement for simulating force effects of a vehicle wheel has a multi-part housing and a frame-shaped wheel adapter mounted on the housing and arranged in a vertical plane. The wheel adapter...
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6640638 |
Loading assembly for a vehicle spindle test fixture
A loading assembly used in a vehicle spindle test fixture includes a wheel adapter housing that is mountable to a vehicle spindle. A pair of vertical struts are provided. Each vertical strut is...
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6612163 |
Device for testing transaxle
A device for testing a transaxle is constructed such that a drive motor is coupled with an input shaft of the transaxle through an input-shaft torque meter, and dynamometers are coupled with output...
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6588287 |
Multiple stage system for aerodynamic testing of a vehicle on a static surface and related method
A system for aerodynamically testing a vehicle having a front pair of wheels and a rear pair of wheels includes a surface for statically supporting the vehicle. The system additionally includes a...
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6571615 |
Bed for testing thermal fatigue in internal combustion engine cylinder heads, and associated methods
A thermal fatigue test stand for combustion engine cylinder heads. A cylinder head support having at least a cylinder head zone capable of being exposed to the engine combustion. At least one...
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6557402 |
Porous metal flow master
A flow master for testing a leak test head includes a housing having an upper body portion and a lower body portion, the housing defining a passageway therethrough, the housing further defining an...
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6543277 |
Non-attached monitoring assembly for pneumatic tire
A monitoring assembly for a pneumatic tire includes an electronic monitoring device having at least one sensor disposed in a protective body. The monitoring assembly may be configured to float on a...
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6393904 |
Stress test rig for helicopter transmissions
The inventive stress test rig for helicopter transmission comprises a first test rig transmission ( 16 ) which is driven by a motor ( 38 ) and forms a closed stress circuit via shafts ( 4, 14, 54...
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6343504 |
Apparatus and methods for testing transmissions
This invention pertains to transmission testers, and specifically to automatic transmission testers, and methods for their use. The headstock is mounted for pivotation about a vertical axis. A...
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6324902 |
Apparatus and method for inspecting phase angle error of camshaft for an internal combustion engine
An apparatus for inspecting a phase angle error of a camshaft having a plurality of cams and a first location hole with a predetermined design phase angle with respect to the cams. The apparatus...
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6272910 |
Camshaft degreeing platform
A measurement platform for an overhead cam shaft type internal combustion engine having at least one piston reciprocable within a cylinder formed in a block; an intake valve and an exhaust valve...
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6189376 |
Transfer case controller test fixture
A text fixture for testing a transfer case electronic control unit according to this invention comprises an eletro-mechanical shift mechanism having electronic inputs and outputs for coupling to...
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6029508 |
Remote portable display unit with wireless transceiver and engine analyzing system incorporating same
An engine analyzing system includes an engine analyzer unit having a CRT display screen for displaying display data based on parameter data received from an associated engine. The system also...
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5987974 |
Portable cylinder contribution tester for a vehicle which includes a diesel engine which is controlled by an electronic circuit
The present invention provides a portable cylinder contribution tester for an electronic diesel engine, the diesel engine including a plurality of cylinders. The tester comprises a plurality of...
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5789667 |
Apparatus and method for testing electric motors
To improve the recognition of defective electric motors, the present invention proposes a test apparatus and method comprising an accelerometer mounted on a member rotating with the output shaft of...
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5637793 |
Test chuck for armature testing
A method and apparatus for testing electric motor armatures includes a non-metallic chuck for supporting each armature during testing. The chuck includes three major components, namely, a lower...
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5569836 |
Suspension testing apparatus and method
In one aspect, the suspension testing apparatus uses air bearings (96) which have a low coefficient of friction. In a second aspect, the suspension testing apparatus ensures accurate measurement of...
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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...
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5499530 |
Pneumatic tester for engine oil pumps
A pneumatic apparatus to test an engine oil pump of the type designed to be driven by an end of the engine crankshaft. On a test stand, the pump is rotated by a driving mechanism while airflow is...
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5487301 |
Test rig and process for testing motor vehicle assemblies, in particular independent wheel suspension
A test rig for testing motor-vehicle assemblies includes a loading device for inducing vertical forces, lateral forces, longitudinal forces and braking or driving forces in the motor-vehicle...
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5388453 |
Method and apparatus for measuring evaporative vehicle emissions
Provided is a method and apparatus for measuring evaporative vehicle emissions. In accordance with the invention, there is provided a leak-tolerant apparatus for use in cooperation with an absolute...
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5167146 |
Emissions test enclosure with minimized air exchange
A vehicle emissions test shed is able to accommodate internal pressure changes due to temperature changes or other causes during a test cycle, which would otherwise cause a measurement threatening...
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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...
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4993258 |
Test bench for vehicles
A test bench for vehicles includes a testing zone for testing vehicles, and a preparation zone separate from the testing zone. The preparation zone includes a lifting platform, an air cushion...
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4964298 |
Device for controlling the air pressure in the low pressure environmental testing chamber for self-propelled vehicles
A device for controlling the air pressure within a low pressure environmental testing chamber for a self-propelled vehicle is disclosed. According to the invention, the device includes a system for...
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4962664 |
Roller clamp type wheel examining apparatus
A roller clamp type wheel examining apparatus includes a support for supporting thereon a wheel of a vehicle to be examined, a plurality of rollers for clamping the wheel supported on the support...
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4939985 |
Test bench for testing the drive train of a vehicle
A test bench for testing a drive train of a test vehicle from an internal combustion engine up to drive shafts for wheels includes an electronic function element or computer simulating moments of...
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4912970 |
Diagnostic testing device
A diagnostic testing device for diagnosing and testing chassis, mechanical, tire and tire tread problems in vehicles which simulates normal operating angles and normal vehicle weight conditions...
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4898026 |
Process for testing driving axles and device for performing the process
A method of and apparatus for testing axles for motor vehicles and especially the drive axles for trucks, has a testing stand in which the axles are supported and connected to a drive motor and...
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4843895 |
Test stand for R/C vehicles
A portable test stand and track simulator for radio-controlled model racers has a cylindrical drum journalled for free rotation between arms extending from a vertical post pivotally mounted within...
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4742720 |
Reference platform for motor vehicle operation
A stable reference platform is securely anchored within the passenger compartment of a motor vehicle. The positioning and anchoring of the platform is accomplished without removing or engaging the...
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4694687 |
Vehicle performance analyzer
A capacitive accelerometer system for detecting changes in G-forces and for producing a digital count value proportional to such changes. An oscillator-driven capacitive transducer of a unique...
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4672844 |
Testing apparatus with improved follower mechanism
Testing apparatus is disclosed for vehicle steering mechanisms and similar devices for applying a controlled force to a test member. A vertically reciprocable platen carries a hydraulic actuator...
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4602499 |
Flexible industrial system with quick change part holding means
The present invention relates to industrial systems, and more particularly to a flexible industrial system with quick change part holding means which can be used to perform many different...
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4587838 |
Automatic examination system for motor vehicles
An automatic examination system for motor vehicles can quickly and automatically examine whether an engine of an automobile or the like is good or bad without making contact with the body of the...
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4521863 |
Gauge for checking the clearance existing between the cams of a camshaft and the relevant valves
A gauge for measuring the clearance between a cam of an engine camshaft and the relevant valve, during rotation of the camshaft, comprises a first movable feeler element, for contacting the cam...
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