Abstract: A transporter vehicle management system includes: a loading weight data acquisition unit that acquires loading weight data indicating a loading weight of a load on a transporter vehicle; a vehicle speed data acquisition unit that acquires vehicle speed data indicating a traveling speed of the transporter vehicle; a road surface data acquisition unit that acquires road surface data indicating a condition of a road surface on which the transporter vehicle travels; a current damage amount calculation unit that calculates a current damage amount of the transporter vehicle on the basis of the loading weight, the traveling speed, and the condition of the road surface; a target amount calculation unit that calculates a target loading weight or a target traveling speed in which the current damage amount is set to a predetermined value; and an output unit that outputs the target loading weight or the target traveling speed.

Abstract: A dump truck includes: a vehicle body frame; a body supported by the vehicle body frame and configured to be raised or lowered; a plurality of tires provided to the vehicle body frame; an electric motor configured to drive the tires; and a cooling blower configured to feed a cooling air to the electric motor, in which the vehicle body frame at least partially includes a hollow part, and the hollow part defines a duct through which the cooling air passes.

Abstract: A transporter vehicle management system includes: a loading weight data acquisition unit that acquires loading weight data indicating a loading weight of a load on a transporter vehicle; a vehicle speed data acquisition unit that acquires vehicle speed data indicating a traveling speed of the transporter vehicle; a road surface data acquisition unit that acquires road surface data indicating a condition of a road surface on which the transporter vehicle travels; a current damage amount calculation unit that calculates a current damage amount of the transporter vehicle on the basis of the loading weight, the traveling speed, and the condition of the road surface; a target amount calculation unit that calculates a target loading weight or a target traveling speed in which the current damage amount is set to a predetermined value; and an output unit that outputs the target loading weight or the target traveling speed.

Abstract: A dump truck includes: a vehicle body frame extending in a travel direction; cooled objects in a form of an engine and an aftercooler; a first radiator and a second radiator configured to exchange heat between a cooling air and a cooling water after cooling the engine and the aftercooler, in which the first radiator is disposed to an outside of a first of the vehicle body frame in a vehicle width direction and the second radiator is disposed to an outside of a second side of the vehicle body frame in the vehicle width direction.

Abstract: A road surface condition determining method according to the invention includes: detecting a suspension pressure of a dump truck during a travel of the dump truck; calculating a maximum amplitude and a frequency of a detection value of the suspension pressure in a predetermined period of time; and determining a road surface condition based on the maximum amplitude and the frequency.

Abstract: A dump truck includes: a vehicle body frame; tires provided to the vehicle body frame and configured to travel the dump truck; and a body supported by the vehicle body frame and configured to be raised and lowered, in which the vehicle body frame includes: a first vertical frame vertically standing in a side view at positions of the tires provided to a first side of the vehicle body frame in a travel direction; and a second vertical frame vertically standing in a side view at positions of the tires provided to a second side of the vehicle body frame in the travel direction, and a mount portion on which the body is mounted is provided on an upper portion of each of the first vertical frame and the second vertical frame.

Abstract: A dump truck includes: a vehicle body frame extending in a travel direction; cooled objects in a form of an engine and an aftercooler; a first radiator and a second radiator configured to exchange heat between a cooling air and a cooling water after cooling the engine and the aftercooler, in which the first radiator is disposed to an outside of a first of the vehicle body frame in a vehicle width direction and the second radiator is disposed to an outside of a second side of the vehicle body frame in the vehicle width direction.

Abstract: A road surface condition determining method according to the invention includes: detecting a suspension pressure of a dump truck during a travel of the dump truck; calculating a maximum amplitude and a frequency of a detection value of the suspension pressure in a predetermined period of time; and determining a road surface condition based on the maximum amplitude and the frequency.