Based On The Can Bus, Motorcycle Chassis Dynamometer

The simulation of road load conditions for motorcycles and bench test(quantitative and qualitative) of motorcycle performance can be conducted in doors by means of a dynamometer.The design project of the motorcycle chassis dynamometer which is based on the CAN-bus is introduced in this paper. The design of the all control system is based on the CAN-bus which make for extending the whole system and network. The whole hardware system is composed of three CAN nodes, which including the data collecting node, the system control node and the communication node. The data collection node is responsible for sampling the controlled parameters in this system. The control node is the key of the system which is responsible for the control process of the testing. The communication node is responsible for the communication of the singlechip and the PC which convert the format of the data with USB interface. The dividing of the work is definitude.The mainly purpose of this dynamometer is used for the testing of the pollution of the motorcycle in fifteen condition means. Measurement of motorcycle emission by mode-test cycle and test of motorcycle chassis dynamic property should be conducted according to the measurement of the running resistance of motorcycle and the setting of motorcycle resistance on the chassis dynamometer. Measuring and calculating of running resistance by inertia coastdown method and adjusting of the running resistance coefficient by coastdown test with the vehicle running on the chassis dynamometer can ensure that the dynamometer shall accurately simulate the running resistance on real roads.