A change-speed control system is provided for a utility vehicle having a stepless
change-speed apparatus for speed-changing an engine output and transmitting the
speed-changed output to a traveling unit. The system includes an engine speed governor
for adjusting speed of the engine, an accelerator controller and a change-speed
control linkage device for providing operative displacements in the stepless change-speed
apparatus and the engine speed governor in association with an operation of the
accelerator controller. The change-speed control linkage device sets an operation
amount for the stepless change-speed apparatus and an operation amount for the
engine speed governor in correlation with the operation amount of the accelerator
controller, such that an acceleration ratio for the engine speed is greater than
an acceleration ratio for the stepless change-speed apparatus until the engine
reaches a predetermined speed and also the stepless change-speed apparatus reaches
a predetermined speed.
