An exemplary embodiment of the present disclosure relates to a construction machine starting assist system including: an engine of a construction machine; an input unit which receives a key-on signal and a key-off signal of the engine; a hydraulic pump which is operated by the engine; an actuator which is operated by hydraulic oil discharged from the hydraulic pump; a regeneration valve which is switched so that a part or an entirety of the hydraulic oil returned from the actuator; an accumulator which is charged with the hydraulic oil supplied from the regeneration valve; a charging valve which is controlled so that the hydraulic oil is discharged from the accumulator when the key-on signal is inputted into the input unit; and a hydraulic motor connected to the engine and configured to assist in starting the engine.

An engine stop-start fuel saving system for a vocational vehicle propelled by a conventional internal combustion engine and powertrain. The system uses a low storage capacity, rapid recharge, high cycle life electric energy storage device, such as an ultracapacitor. The system also includes a generator that is coupled to the engine and that is connected to recharge the electric energy storage device, as well as a motor that is powered by the energy storage device and that is coupled to the engine. The system also includes a controller that can activate the motor to restart the engine when it is stopped, and engage the generator to recharge the electric energy storage device, and that can subsequently stop the engine again when the electric energy storage device has reached a threshold charge level. The electric energy storage device also powers at least one of: integral vehicle equipment; peripheral vehicle equipment; or an electrical outlet circuit with a socket for external plugin equipment.

An engine stop-start fuel saving system for a vocational vehicle propelled by a conventional internal combustion engine and powertrain. The system uses a low storage capacity, rapid recharge, high cycle life electric energy storage device, such as an ultracapacitor. The system also includes a generator that is coupled to the engine and that is connected to recharge the electric energy storage device, as well as a motor that is powered by the energy storage device and that is coupled to the engine. The system also includes a controller that can activate the motor to restart the engine when it is stopped, and engage the generator to recharge the electric energy storage device, and that can subsequently stop the engine again when the electric energy storage device has reached a threshold charge level. The electric energy storage device also powers at least one of: integral vehicle equipment; peripheral vehicle equipment; or an electrical outlet circuit with a socket for external plugin equipment.

This invention relates to a starter system for an electronically controlled internal combustion engine which is particularly, although not exclusively, suitable for use on electronically controlled diesel engines used in trackless mining machinery. The starter system adapted to actuate an electronic engine control module (ECM) of an electronically controlled fuel-injection engine when the engine is started, wherein the engine comprises a fuel tank and a high pressure injector pump which are arranged in flow communication with a series of injector nozzles. The starter system is characterised therein that it comprises an alternator which is operatively associated with the ECM for actuating the ECM, the arrangement being such that when the engine is started, the alternator supplies the ECM with electrical current before the engine is cranked.

This invention relates to a starter system for an electronically controlled internal combustion engine which is particularly, although not exclusively, suitable for use on electronically controlled diesel engines used in trackless mining machinery. The starter system adapted to actuate an electronic engine control module (ECM) of an electronically controlled fuel-injection engine when the engine is started, wherein the engine comprises a fuel tank and a high pressure injector pump which are arranged in flow communication with a series of injector nozzles. The starter system is characterised therein that it comprises an alternator which is operatively associated with the ECM for actuating the ECM, the arrangement being such that when the engine is started, the alternator supplies the ECM with electrical current before the engine is cranked.

An engine stop-start fuel saving system for a vocational vehicle propelled by a conventional internal combustion engine and powertrain. The system uses a low storage capacity, rapid recharge, high cycle life electric energy storage device, such as an ultracapacitor. The system also includes a generator that is coupled to the engine and that is connected to 5 recharge the electric energy storage device, as well as a motor that is powered by the energy storage device and that is coupled to the engine. The system also includes a controller that can activate the motor to restart the engine when it is stopped, and engage the generator to recharge the electric energy storage device, and that can subsequently stop the engine again when the electric energy storage device has reached a threshold 10 charge level. The electric energy storage device also powers at least one of: integral vehicle equipment; peripheral vehicle equipment; or an electrical outlet circuit with a socket for external plugin equipment.

An engine stop-start fuel saving system for a vocational vehicle propelled by a conventional internal combustion engine and powertrain. The system uses a low storage capacity, rapid recharge, high cycle life electric energy storage device, such as an ultracapacitor. The system also includes a generator that is coupled to the engine and that is connected to 5 recharge the electric energy storage device, as well as a motor that is powered by the energy storage device and that is coupled to the engine. The system also includes a controller that can activate the motor to restart the engine when it is stopped, and engage the generator to recharge the electric energy storage device, and that can subsequently stop the engine again when the electric energy storage device has reached a threshold 10 charge level. The electric energy storage device also powers at least one of: integral vehicle equipment; peripheral vehicle equipment; or an electrical outlet circuit with a socket for external plugin equipment.

A hydraulic circuit device for a vehicle, includes a clutch, a flow path, a fluid pump, a pressure generating device, and a control valve. The control valve is configured to determine whether a transmission start-stop function activation condition other than a vehicle speed is satisfied, determine whether a system start-stop function activation condition related to a component of the vehicle is satisfied, the component being other than the transmission, determine whether the vehicle speed is equal to or lower than a first speed threshold, and boost a line pressure of the flow path to accumulate pressure in the pressure generating device for preparing activation of the start-stop function if it is determined that the transmission start-stop function activation condition and the system start-stop function activation condition are satisfied, and if it is determined that the vehicle speed is equal to or lower than the first speed threshold.

A system and method for controlling a hydraulic fracturing pumping system is described herein. The method can include stopping an engine coupled to a hydraulic fracturing pumping system including at least one pump by supplying pressure from an accumulator to a hydraulic braking system including a brake. The method can also include starting the engine coupled to the hydraulic fracturing pumping system and releasing the brake.

A system and method for controlling a hydraulic fracturing pumping system is described herein. The method can include stopping an engine coupled to a hydraulic fracturing pumping system including at least one pump by supplying pressure from an accumulator to a hydraulic braking system including a brake. The method can also include starting the engine coupled to the hydraulic fracturing pumping system and releasing the brake.