A vehicle testing device including a cooling device, which is capable of freely selecting a part to be cooled and a wind direction in accordance with a purpose of a test is provided. The vehicle testing device that tests a test piece that is a vehicle or a part of the vehicle includes a rotating body on which the test piece is placed, and a cooling device that sends air from a side of the test piece to at least a part of the test piece in order to cool the test piece placed on the rotating body.

A vehicle vibration method suitable for performing a test simulating a rough road, the vehicle vibration method using a vibration device that causes at least one wheel of a test target vehicle, the method including: an initial height setting step including setting a shaft distance in the front-rear direction between a front shaft and a rear shaft to an initial setting distance and setting the wheel at an initial setting height; a vibration step including performing vibration by at least one selected from a raising operation step including narrowing the shaft distance from the initial setting distance to raise the wheel from the initial setting height, and a lowering operation step including widening the shaft distance from the initial setting distance to lower the wheel from the initial setting height; and a return step including setting back the shaft distance to the initial setting distance.

A vehicle information calculation apparatus includes a motor torque acquisition unit, an angular acceleration acquisition unit, a contact force acquisition unit, and an inertia moment calculator. The motor torque acquisition unit acquires a torque of a motor that drives a vehicle. The angular acceleration acquisition unit acquires an angular acceleration of the motor. The contact force acquisition unit acquires a contact force of a wheel of the vehicle. The inertia moment calculator calculates an inertia moment of a rotating system of the vehicle including the wheel on the basis of the torque acquired by the motor torque acquisition unit, the angular acceleration acquired by the angular acceleration acquisition unit, the contact force acquired by the contact force acquisition unit, and a coefficient of friction between the wheel of the vehicle and a contact surface.

The system is provided to calibrate the ECU of the vehicle. The system comprises a remote computer, a central server, a local computer and setup comprising at least a dynamo meter, and at least one actuator. The dynamo meter and the actuator are interfaced and operated with the local computer. The central server is connected to the local computer by a second networking means, and a remote computer is connected to the central server by a first networking means. The remote computer, uploads instructions to the central server, executes the instructions through the local computer to operate the dynamo meter and the actuator, and calibrates the ECU of the vehicle. The instructions are downloaded to the local computer by the second networking means.

In accordance with exemplary embodiments, methods and systems are provided for automatically controlling braking of a vehicle during testing. In an exemplary embodiments, a testing assembly is provided that includes a roll test machine and a tester system. The roll test machine includes a flat surface, a plurality of rollers, and one or more optical controllers. The plurality of rollers are configured to engage a vehicle on the flat surface for testing of the vehicle. The one or more optical encoders are configured to generate wheel speed and brake force data for the vehicle during testing of the vehicle. The tester system includes a processor configured to at least facilitate generating instructions for brake pressure to be applied via a braking system of the vehicle during the testing of the vehicle.

The present invention enables the measuring and evaluating of variations in vehicle fuel consumption and emission test results due to differences in driving style. An automatic operation device that automatically operates a test part based on a command vehicle speed includes a receiving unit, a command vehicle speed shaping unit, and an operation control unit. The receiving unit receives a driving mode set or changed by a user. The command vehicle speed shaping unit shapes a command vehicle speed r(t) based on the driving mode received by the receiving unit. The operation control unit controls an operation of the test part by a shaped command vehicle speed r′(t) obtained by the command vehicle speed shaping unit.

In a vehicle vibration device including a first shaft and a second shaft extending in a left-right direction at such a spacing that each of wheels of a vehicle to be inspected is sandwiched therebetween in a front-rear direction and a movement mechanism that moves the first shaft, the first shaft being moved in a front-rear and horizontal direction by the movement mechanism to excite the wheel to vibration in front-rear and up-down directions, a support member that supports the wheel from below is provided between the first shaft and the second shaft. As a result, a vibration force produced by a front-side shaft is effectively transmitted to the wheel over an entire vibration frequency range in a vibration test.

An example embodiment includes a large observation device that observes the object using a quantum beam; a reproduction device that is installed in the large observation device and reproduces an input to the object in a state where the object can be observed by the large observation device; a dynamic state observation device that observes a dynamic state of a functional object functioning by a combination of a plurality of elements; a first information acquisition unit that functionally decomposes the functional object up to an element corresponding to the object and acquires first information that is input information to the element corresponding to the object; and a transmission unit that transmits the first information to the reproduction device, in which the reproduction device reproduces the input to the object on the basis of the first information.

A vehicle is received in a stationary controlled area of a controlled testing environment. Simulation inputs corresponding to a simulated scene are generated and transmitted to the vehicle. The vehicle applies torque in response. A vehicle control mechanism of the controlled testing environment, such as a chassis dynamometer, a motorized treadmill, or a lift, keeps the vehicle within the stationary controlled area during the test despite the torque applied by the vehicle. A path of the vehicle within the simulated scene is determined based on the applied torque, based upon which the vehicle's navigation system is calibrated.

The present invention is to evaluate a steering function of a test piece which is a vehicle having an automatic steering function or a part thereof on a chassis dynamometer, and is a vehicle testing system that performs a running test of a test piece which is a vehicle having an automatic steering function or a part thereof. The vehicle testing system includes a chassis dynamometer for performing a running test of the test piece, and a steering reaction force inputting device that inputs a steering reaction force to a steering rack gear of the test piece with a tie rod being removed, in which the steering reaction force is input to the test piece traveling on the chassis dynamometer to evaluate the steering function of the test piece.