Abstract:
Embodiments of the present invention relate to a platform for a dummy for simulating traffic situations. The platform comprises a base body which comprises a bottom surface and a surface which is formed opposing to the bottom surface, and at least one roller element which is arranged at the bottom surface, wherein the roller element is configured such that the base body is displaceable along a ground by the roller element, wherein the base body comprises an attachment region and an installation region. On the attachment surface of the attachment region, an attachment device for attaching the dummy is formed, wherein in the installation region, functional elements are installable. The base body is configured so thin, that a collision vehicle can drive over the base body without a damage.
Abstract:
A mode driving assistance system for a vehicle assists a driver when the driver conducts mode driving by operating an operation member such that a traveling speed meets a time series change in the traveling speed. The operation member is disposed on a chassis dynamometer. The operation member conducts at least one of acceleration or deceleration of the vehicle. The system includes: a display that the driver can observe visually; a storage that stores a target value relating to an operation amount of the operation member in time series; a first detector that detects an actual value of the operation amount of the operation member; and a controller that displays the target value of the operation amount of the operation member stored in the storage and the actual value of the operation amount of the operation member detected by the first detector, as a time series image on the display.
Abstract:
In a vehicle action simulation method according to the present invention, a behavior of an actual vehicle during travel is predicted, and an attitude of a tire and a rotational speed of a rotary drum are changed to reproduce a transient change in a tire attitude that occurs during the travel of the actual vehicle on the tire while the predicted behavior of the actual vehicle during travel is reflected, stress applied to the tire in contact with the rotary drum of a tire ground contact characteristic measuring portion is measured, tire ground contact characteristics are calculated, the behavior of the actual vehicle during travel is predicted while vehicle characteristics predicted from the tire ground contact characteristics are reflected, and the prediction, the reproduction, the measurement of stress, and the calculation are performed in parallel.
Abstract:
In a type of vehicle restraint device where a vehicle is restrained on rollers of a vehicle testing device by using wire ropes, etc., it was necessary to provide the vehicle with hook portions for engaging the wire ropes, etc. and difficult to reproduce the vehicle pitching movement behavior due to pressing the vehicle against the rollers by the wire ropes, etc. Thus, vehicle restraint device 11 that restrains vehicle 1 placed on rollers 7 of a vehicle testing device is equipped with a pair of vehicle restraint jigs 12 each having one end side rotatably coupled to vehicle 1 and the other end side rotatably coupled to left or right pole 10 on floor surface 9, and second link mechanism 501 that couples the other end side of this vehicle restraint jig 12 to pole 10 to allow a yawing movement of vehicle restraint jig 12.
Abstract:
The invention relates to a method for testing a brake system (B) of a vehicle (F), wherein simulation results are used for the adaptation of a test on a test stand (P). The object of the invention is to provide a method for improving the test of the brake system (B). In accordance with the invention, this is achieved by creating a first flow simulation model (S1) of the vehicle (F) from geometric data (G) and by creating a second flow simulation model (S2) of the test stand (P), and a first simulation result is calculated with at least one first input variable by using the first flow simulation model (S1), and a change (Δ) of at least one second input variable in the second simulation model (S2) is carried out until a second simulation result of the second simulation model (S2) is achieved which corresponds essentially to the first simulation result.
Abstract:
A system and method for testing a test vehicle or a system on the test vehicle for warning the presence of an object proximate the test vehicle or a system to avoid a collision includes a self-powered, independently movable target configured to be positioned proximate the test vehicle, the target comprising a support frame having wheels, a motor operably coupled to one or more wheels, brakes operably coupled to each wheel and a control system coupled to the motor, brakes and wheels and configured to control acceleration, braking and steering of the wheels, and a collision avoidance system operable with the control system and configured to control the target to avoid a collision with the test vehicle.
Abstract:
The present invention provides a drum of a wheel tester, which is characterized in that an outer surface of the drum has cyclic corrugations parallel to a cross section of the drum, wherein the cyclic corrugation in one cycle on the outer surface is composed of a concave arc and a convex arc, both of which are tangential in ends and equal in diameter, and one cycle is 30 to 50 mm in length and 1 to 1.5 mm in depth. The drum is easy to machine, reduced in cost, increased in friction force and suitable for simulating various road surfaces.
Abstract:
The present invention discloses a climbing test bench for scooters, comprising a middle bridge arranged horizontally and above the ground and a first skew bridge and a second skew bridge which are arranged at both ends of the middle bridge; an upper end of the first skew bridge is hinged with one end of the middle bridge, an upper end of the second skew bridge is hinged with the other end of the middle bridge, a lower end of the first skew bridge and a lower end of the second skew bridge are in contact with the ground, respectively; and a lifting device is arranged below the middle bridge, and the lifting device may drive the middle bridge to rise and fall so that the first skew bridge and the second skew bridge form different tilt angles. Due to light weight of a scooter, it is not desired to provide a truss-frame structure. The arrangement of a lifting device can ensure the stability of the present invention.
Abstract:
Disclosed is a method of testing a vehicle having a fifth wheel and an apparatus for restraining the vehicle. The method of testing the vehicle may include moving the vehicle on a dynamometer and inserting a coupling structure into the fifth wheel to secure the vehicle during a test. In accordance with example embodiments, the apparatus may include a boom having a pin connection and a connecting structure arranged at an end of the boom, the connecting structure being configured to couple to the fifth wheel of the vehicle.
Abstract:
Systems and methods are provided for controlling the simulation of a coupled hybrid dynamic system. A physical test rig configured to drive the physical structure component of the system and to generate a test rig response as a result of applying a test rig drive signal. A processor is configured with a virtual model of a complementary system to the physical structure component. The processor receives the test rig response and generates a response of the complementary system based on a received test rig response. The system can be driven with a random input. The processor compares the test rig response with the response of the complementary system, the difference being used to form a system dynamic response model.