Method of reproducing abnormal sound and jig
AssigneeHonda Motor Co., Ltd.
InventorAkihiro Usui
Life of this patent
Estimating the term…
Abstract
A method of reproducing abnormal noise comprises: a step of starting an engine while buffer suppressing members for suppressing the buffer function of an engine mount are mounted on the engine mount which buffer-mounts on a vehicle body an engine for driving a vehicle and a shift lever for driving is maintained in a neutral position; and a step of opening and closing the accelerator of the engine while the shift lever for driving is maintained in a neutral position. In the method of reproducing abnormal noise, jigs are used.
Claims10
A method of reproducing an abnormal noise produced in a passenger compartment of a vehicle in association with vibrations of a vehicle body thereof while the vehicle is traveling, said method comprising the steps of:
- installing a damping limiting member on an engine mount supporting an engine on the vehicle body in a damping fashion, wherein the damping limiting member is configured to limit a damping function of the engine mount;
- starting to operate the engine for propelling the vehicle while the damping limiting member is installed on the engine mount and a gearshift lever is kept in a neutral position;
- increasing a rotational speed of the engine while the gearshift lever is kept in the neutral position to reproduce the abnormal noise;
- and
- removing the damping limiting member to allow the engine mount to support the engine in the damping fashion.
A jig configured to cancel a damping function of an engine mount,
- wherein the jig is fixed to an engine and a vehicle body at a position where the engine mount supports the engine in a damping fashion,
- the jig comprising:
- a first flange portion held in abutment against an engine-fixed portion of the engine mount which is fixed to the engine and fixed to the engine by a first threaded fastening mechanism which is shared by the engine-fixed portion;
- a second flange portion held in abutment against a vehicle-body-fixed portion of the engine mount which is fixed to the vehicle body and fixed to a member of the vehicle body by a second threaded fastening mechanism which is shared by the vehicle-body-fixed portion;
- and
- a rigid body connecting the first flange portion and the second flange portion to each other.
Dependencies are inferred from the claim text.