A vehicle includes a high-voltage system circuit including a high-voltage battery; a low-voltage system circuit including a low-voltage battery and an updater; a DC-DC converter coupled between the two circuits; and a controller that controls the two circuits and the DC-DC converter. The updater updates a program of an update-target device. The DC-DC converter reduces in voltage output electric power of the high-voltage battery and then supplies the electric power to the low-voltage system circuit. The controller determines whether the update-target device is a certain device relating to electric power supply from the high-voltage battery. If the update-target device is the certain device, the low-voltage battery is charged with the output electric power of the high-voltage battery, the certain device stops operating, and the updater updates the program of the certain device by using the output electric power of the low-voltage battery.

A hybrid power train structure for off-road vehicles (ATVs, UTVs and SSVs) uses an internal combustion engine (“ICE”) rotating a crankshaft through a continuously variable transmission (“CVT”) as a primary source of locomotion torque, but also includes a driving/generator motor which, in certain established conditions, can either provide an additional or alternative source of locomotion torque or can harvest electricity from the torque created by the internal combustion engine. The driving/generator motor is an axial flux motor of small size for its relative torque output, which can either be directly coupled to the CVT output shaft or, when additionally used as a starter motor for the ICE in an automatic ICE starting and stopping routine.

A temperature of a catalyst (EHC) is estimated with high accuracy. An electronic control device of the present invention controls an engine system that includes: an internal combustion engine; a motor capable of motoring the internal combustion engine; a catalyst that is installed in an exhaust passage of the internal combustion engine, has a function of being heated by energization, and purifies exhaust gas; and a downstream temperature sensor installed on the downstream side of the catalyst. The electronic control device includes: a control unit that causes the motor to motor the internal combustion engine; and an estimation unit that performs a first estimation process of estimating a temperature of the catalyst based on detection information of the downstream temperature sensor when the internal combustion engine is motored.

A hybrid system which can calculate various type of more proper required torques is provided while input factors which can be used for calculating the various types of required torques are limited.

A hybrid system 2 includes a rotation sensor 31 which detects a rotation number of an engine 3, at least either one of an accelerator opening-degree sensor 61 which detects an accelerator opening degree and a rotation-number instruction unit 62 which transmits a rotation-number signal instructing a certain rotation number to the engine 3, and a control unit 5 which controls an operation of the engine 3. The control unit 5 executes control of calculating a torque determining factor for determining a system required torque as the hybrid system 2 on the basis of at least either one of the accelerator opening degree detected by the accelerator opening-degree sensor 61 and the rotation-number signal transmitted by the rotation-number instruction unit 62 and control of calculating the system required torque on the basis of the rotation number detected by the rotation sensor 31 and the calculated torque determining factor.

Based on further ingenuity, it is possible to support a heavy and large electric motor on an engine body with sufficient strength while driving the electric motor with a belt without slipping, thereby providing a more streamlined industrial hybrid engine. The industrial hybrid engine is provided with an endless rotation band wound around a drive pulley of a crankshaft and a motor pulley of an electric motor for motive power. The electric motor is attached to an engine case in a position-fixed state using one support bracket. The support bracket includes first and second support portions for attaching the electric motor, and attachment portions positioned between the first and second support portions for attaching the electric motor to the engine case.

A hybrid drive system for electric vehicle is disclosed. The system includes a rear wheel. The system also includes a first motor mechanically coupled to the rear wheel and an internal combustion engine. The first motor is configured to drive power for the electrical vehicle to reach a fraction of a predetermined threshold value of rotations per minute (RPM). The system also includes a second motor mechanically coupled to the internal combustion engine via the chain drive transmission unit with a one way bearing. The second motor is configured to receive an activation signal to power the internal combustion engine to transfer the power driven to the rear wheel via the continuously variable transmission unit upon attaining the fraction of the predetermined threshold value of rotations per minute (RPM) by the first motor.

An automotive vehicle includes an engine, a plurality of electrical load subsystems, and at least one controller. During an auto start of the engine, the at least one controller detects a starter disengage condition. In response to detecting the starter disengage condition, the at least one controller periodically determines a value of an operating parameter associated with the vehicle, causes a first subset of the electrical load subsystems to be enabled when the value of the operating parameter falls with a first predefined range of values, and causes a second subset of the electrical load subsystems to be enabled when the value of the operating parameter falls within a second predefined range of values.

An automotive vehicle includes an engine, a plurality of electrical load subsystems, and at least one controller. During an auto start of the engine, the at least one controller detects a starter disengage condition. In response to detecting the starter disengage condition, the at least one controller periodically determines a value of an operating parameter associated with the vehicle, causes a first subset of the electrical load subsystems to be enabled when the value of the operating parameter falls with a first predefined range of values, and causes a second subset of the electrical load subsystems to be enabled when the value of the operating parameter falls within a second predefined range of values.

System comprising an internal combustion engine including a crankshaft, a crankshaft sprocket coupled to the crankshaft, an electric motor in mechanical communication with the crankshaft sprocket, a bidirectional engine position sensor coupled to the crankshaft sprocket, a controller in electrical communication with the bidirectional engine position sensor and a non-transitory memory having instructions that, in response to execution by a processor, cause the processor to determine a position of an engine component upon shutdown of the engine, store the position of the engine component at shutdown in the non-transitory memory, and control the electric motor at restart in response to the position of the engine component at shutdown are disclosed. Methods are also disclosed.

System comprising an internal combustion engine including a crankshaft, a crankshaft sprocket coupled to the crankshaft, an electric motor in mechanical communication with the crankshaft sprocket, a bidirectional engine position sensor coupled to the crankshaft sprocket, a controller in electrical communication with the bidirectional engine position sensor and a non-transitory memory having instructions that, in response to execution by a processor, cause the processor to determine a position of an engine component upon shutdown of the engine, store the position of the engine component at shutdown in the non-transitory memory, and control the electric motor at restart in response to the position of the engine component at shutdown are disclosed. Methods are also disclosed.