Identification of vibration induced noises on vehicles
First Claim
1. An apparatus for identification of vibration induced noises on vehicles, the apparatus comprising wheel supporting means for supporting a vehicle on its wheels, a vibration generator for vibrating the wheel supporting means, control means for controlling the frequency of operation of the vibration generator, data input means for receiving input when a vibration induced noise occurs on the vehicle, data storage means for storing a set of stored data representing frequencies at which known vibration induced noises occur, and comparator means coupled to the data input means and the data storage means for comparing the frequency at which the vibration induced noise occurs with a set of stored data to identify the source of the vibration induced noises.
2 Assignments
0 Petitions
Accused Products
Abstract
In order to be able to quickly identify rattles and squeaks occurring on vehicles, a vibration generator is used which causes the vehicle to be vibrated at a range of different frequencies (C). By setting up the apparatus so that the frequency range is traversed whilst a vehicle is being caused to vibrate, the frequency at which the noise begins to occur (A) can be noted, the frequency at which the noise stops occurring (B) can be noted and this information can be compared with stored data (E) to identify the source of the noise.
40 Citations
17 Claims
- 1. An apparatus for identification of vibration induced noises on vehicles, the apparatus comprising wheel supporting means for supporting a vehicle on its wheels, a vibration generator for vibrating the wheel supporting means, control means for controlling the frequency of operation of the vibration generator, data input means for receiving input when a vibration induced noise occurs on the vehicle, data storage means for storing a set of stored data representing frequencies at which known vibration induced noises occur, and comparator means coupled to the data input means and the data storage means for comparing the frequency at which the vibration induced noise occurs with a set of stored data to identify the source of the vibration induced noises.
-
15. A method for identification of vibration induced noises on vehicles, the method comprising the steps of vibrating the vehicle (1) at a range of different frequencies, noting the frequency at which a vibration induced noise appears (A) and of a different frequency at which it disappears (B), and comparing the frequencies over which the noise is present with stored data representing frequencies at which known vibration induced noises occur.
-
16. An apparatus for identification of vibration induced noises on vehicles, the apparatus comprising:
-
(a) wheel supporting means for supporting a vehicle on its wheels; (b) a vibration generator for vibrating the wheel supporting means; and (c) an electronic computer system having; (i) control means for causing the vibration generator to vibrate the wheel supporting means through a frequency range of 0 to approximately 100 Hertz; (ii) data input means for receiving input when a vibration induced noise occurs on the vehicle to mark the starting and stopping of noise occurrence as the vibration generator is cycled through the frequency range; (iii) data storage means for storing a set of stored data representing frequencies at which known vibration induced noises occur; (iv) comparator means coupled to the data input means and the data storage means for comparing the frequency at which the vibration induced noise occurs with a set of stored data to identify the source of the vibration induced noises; and (v) a display screen to simultaneously display a frequency at which the vehicle is being vibrated, the frequencies at which a noise begins to occur (A) and stops occurring (B), and portions of the stored data to indicate the vibration induced noises expected to occur over the frequency (A) and the frequency (B). - View Dependent Claims (17)
-
Specification