METHOD AND DEVICE FOR TESTING OF A COMBUSTION ENGINE OR AN ASSOCIATED STRUCTURE AND A RIG
First Claim
1. Method for performing tests on an internal combustion engine or a structure which is associated with the engine by measuring output parameter values on at least one output shaft (3LF, 3RF) which is connected to the engine, characterized byproducing a representation of variations in said output parameter values during operation of the engine,said representation of variations in said output parameter values during operation of the engine being produced during one engine cycle,evaluating the representation for determining an operating parameter value for the engine or the structure, wherein the said test is performed by measuring the said output parameter values after a transmission, andthe measuring of the output parameter values after the transmission being a measuring of the output parameter values on at least one wheel shaft (3LF, 3RF) of a vehicle.
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Accused Products
Abstract
A method and a device for performing tests on an internal combustion engine or a structure which is associated with the engine by measuring output parameter values on at least one output shaft (3LF, 3RF) which is connected to the engine, is distinguished by producing a representation of variations in said output parameter values during operation of the engine, and evaluating the representation for determining an operating parameter value for the engine or the structure. The invention also concerns a dynamometer testing rig.
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Citations
21 Claims
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1. Method for performing tests on an internal combustion engine or a structure which is associated with the engine by measuring output parameter values on at least one output shaft (3LF, 3RF) which is connected to the engine, characterized by
producing a representation of variations in said output parameter values during operation of the engine, said representation of variations in said output parameter values during operation of the engine being produced during one engine cycle, evaluating the representation for determining an operating parameter value for the engine or the structure, wherein the said test is performed by measuring the said output parameter values after a transmission, and the measuring of the output parameter values after the transmission being a measuring of the output parameter values on at least one wheel shaft (3LF, 3RF) of a vehicle.
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16. Device for performing tests on an internal combustion engine or a structure which is associated with the engine including means for measuring output parameter values on at least one output shaft (3LF, 3RF) which is connected to the engine, characterized by
means for producing a representation of variations in said output parameter values during operation of the engine, the said representation of variations in said output parameter values during operation of the engine are being produced during one engine cycle, means for evaluating the representation for determining an operating parameter value for the engine or the structure, and means for measuring the said output parameter values after a transmission, and wherein the measuring of the output parameter values after a transmission is a measuring of the output parameter values on at least one drive shaft (3LF, 3RF) of the vehicle.
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21-22. -22. (canceled)
Specification