Auxiliary device for fuel consumption test

The invention provides an auxiliary device for a fuel consumption test. The auxiliary device comprises a fixing support, a base structure, a pedal structure and a limit pin structure. The base structure comprises a base body, a guide rod, a limit pin support, an electromagnetic controller and a first connecting support. The guide rod, the limit pin support, the electromagnetic controller and the first connecting support are sequentially located on the base body. The fixing support is provided with a second connecting support used for being connected with the first connecting support in a matching mode. The pedal structure comprises a pressing plate, a guide block and a limit block, all of which are connected in sequence. The guide block is arranged on the periphery of the guide rod in a sleeving mode. The limit pin structure comprises a pin head, a pin shaft and a pin end, all of which are connected in order. The pin head is a wedge-shaped pin head and arranged towards one side of the limit block. One surface, opposite to the pin head, of the limit block is provided with an engaging clamp used for being engaged with the pin head. The pin end is magnetic. The auxiliary device for the fuel consumption test has following beneficial effects: unfavorable factors of test errors generated by difference between tension level of muscles and reaction speed of a driver are eliminated in order to improve accuracy and comparability of the test.