diff --git a/User/module/chassis.h b/User/module/chassis.h
index 1a20ffd..d52680c 100644
--- a/User/module/chassis.h
+++ b/User/module/chassis.h
@@ -152,7 +152,7 @@ extern "C"
 
 	int8_t chassis_init(Chassis_t *c,  Chassis_Param_t *param, float target_freq);
 	int8_t Chassis_update(Chassis_t *c);
-	int8_t Chassis_Control(Chassis_t *c,  Chassis_CMD_t *c_cmd);
+	int8_t Chassis_Control(Chassis_t *c,  Chassis_CMD_t *c_cmd,uint32_t now);
 	void Chassis_Setoutput(Chassis_t *c);
 #ifdef __cplusplus
 }