A control device for a hybrid vehicle is provided. When a first drive mode is selected as the drive mode of the hybrid vehicle, a control section shifts the drive mode to a second drive mode when a charge amount of a battery for an electric motor becomes smaller than or equal to a determination charge amount. The first drive mode operates the electric motor while an internal combustion engine is stopped. The second drive mode permits the operation of the internal combustion engine. The control section executes a shifting process when the upper limit system output is lower than or equal to a startup determination output even though the charge amount of the battery is greater than the determination charge amount. The shifting process shifts the drive mode to the second drive mode to start the internal combustion engine.

A machine control system controls operation of any one of a plurality of interchangeable power sources mounted on a machine. The machine includes an undercarriage supporting ground engagement members that propel the machine and an upper structure rotatably supported on the undercarriage. The upper structure includes a swing frame that supports an operator cab, an interchangeable power source, hydraulic components, and electrical components. The machine control system includes a processor configured to receive variables, control parameters, and standards associated with operation of each of the plurality of power sources from one or more of sensors, input devices, output devices, and memory communicatively coupled to the processor, utilize control logic, machine operational inputs and outputs, sensed and processed signals associated with position, movement, and operation of the machine, and one or more of stored, sensed, and processed data, variables, control parameters, and standards to process outputs and operating characteristics specific to each of the plurality of power sources, and standardize the power output by each of the power sources to provide a normalized, consistent control and operation of systems of the machine regardless of which of the power sources is mounted on the machine.

A control apparatus for controlling a vehicle includes a driving motor configured to drive the vehicle by outputting motor torque based on a supply voltage from a battery, and an engine configured to drive the vehicle by outputting engine torque. The control apparatus may acquire driving mode data which is calculated based on traffic information from the current position to the destination of the vehicle and dimension information of the vehicle, and control the vehicle to drive to the destination according to a driving mode which is determined by applying a travelling condition of the vehicle to the acquired driving mode data, where the power distribution ratio of the motor torque to the engine torque is reflected in the driving mode data.

The invention relates to a control system for a hybrid electric vehicle (100), the vehicle having a powertrain (135) comprising at least one electric propulsion motor (123) and at least one engine (121), the control system being operable to control the vehicle to operate in an electric vehicle (EV) mode in which the at least one engine remains switched off and the at least one electric propulsion motor is configured to deliver drive torque and a boost mode in which the at least one engine is switched on to provide additional power to drive the vehicle. When the vehicle is operating in EV mode the system is further operable to determine whether a boost location exists ahead of the vehicle being a location at which a gradient of a driving surface is sufficiently high to require selection of the boost mode, the control system being operable automatically to command starting of the at least one engine before the boost location is reached.

A method (110), a device (10), and a powertrain (70) are provided for the safe operation of a hybrid vehicle (20). The hybrid vehicle has at least one first (30) and one second (40) drive assembly. The drive assemblies in each case drive the hybrid vehicle, alone or jointly in a hybrid type of operation. The first drive assembly is operated using fuel from a fuel tank (50). An amount of fuel in this fuel tank is monitored. If the amount of fuel is smaller than a specifiable value, then a safety operation of the hybrid vehicle is activated. During the safety operation, the output of the second drive assembly is reduced if the hybrid vehicle is driven using a type of operation which negatively influences the driving dynamics of the hybrid vehicle in the case of a failure of the first drive assembly.

A control apparatus for a hybrid construction machine which can continue filter regeneration without impairing the operability as far as possible irrespective of a condition of a machine body or a power storage device is provided. The control apparatus for a hybrid construction machine includes an engine, a motor generator driven by the engine and capable of generating electric power, a hydraulic pump driven by total torque of the engine and the motor generator, a power storage device, an inverter, a filter that collects a particulate material in exhaust gas of the engine, and a control section that outputs a command signal for controlling powering operation or regeneration operation of the motor generator. The control apparatus further includes a powering operation limitation section that inputs thereto an ordinary torque command for the motor generator calculated by a torque command value calculation section and a demand signal for regeneration of the filter decided by a filter regeneration decision section and calculates the command signal in response to the input signals. The powering operation limitation section calculates, when the demand signal for regeneration of the filter is available, a command signal for limiting the powering operation of the motor generator.

A system and method for controlling engine starting in a hybrid vehicle having an engine, a first electric machine selectively coupled to the engine by a first clutch, a second electric machine coupled to the engine, a step-ratio transmission selectively coupled to the electric machine by a second clutch include starting the engine using either the first electric machine or the second electric machine based on engine stop position. The first electric machine may be a low voltage starter motor or integrated starter-generator. The system and method may use the first electric machine when the engine stop position is within a specified range of positions relative to a piston top dead center position associated with higher cranking torques.

The invention relates to a method for operating a hybrid drive device (2) which has an internal combustion engine (3) and an electric machine (4) which can be or is operatively connected to the internal combustion engine (3) and can be operated as a generator, wherein in a normal operating mode a temperature of the electric machine (4) is determined by means of a temperature sensor (14), and operation of the electric machine (4) is permitted only if the temperature is lower than a predefined maximum temperature. There is provision here that in the event of a defect in the temperature sensor (14) an emergency operating mode is carried out in which operation of the electric machine (4) is permitted only with limited power, limited torque and/or over a limited time period. The invention further relates to a hybrid drive device (2).

Limiting torque of a motor to avoid its overheating results in switching to engine-driven traveling, thus leading to lower fuel efficiency, which is a problem. FIG. 5(D) shows the torque of the motor 1. When finding that the difference ΔEm between the power consumption rates is larger than the threshold EmT calculated by using the section distances d1 and d2, the power consumption calculation unit 18 sets a temperature threshold for torque limitation on the motor 1 to a low value so as to prevent the motor 1 from overheating. In other words, when the fuel efficiency improvement effect in the second section is large, the torque in the first section is limited. As a result, the motor 1 is limited in its torque in the first section p-f1, which makes the first section p-f1 a hybrid traveling section where the vehicle is driven by the motor 1 and the engine 2. Meanwhile, the second section f1-f2 is a traveling section where the vehicle is driven by the motor 1 only. In this manner, overheating of the motor is suppressed in the gradient-climbing traveling section as stable motor-driven traveling is performed in the section that follows the gradient-climbing traveling section and that offers a high fuel efficiency improvement effect. This improves the fuel efficiency.

Provided is a control method of a hybrid vehicle provided with an engine, a power-generation motor generator, and a travel motor generator. The hybrid vehicle has a series hybrid mode in which the power-generation motor generator is driven by the engine to generate electric power and the travel motor generator is driven by the electric power generated by the power-generation motor generator. The hybrid vehicle has a filter configured to collect a particulate matter in exhaust gas from the engine. The control method includes performing an operation limitation of the engine based on a loaded amount of the particulate matter in the filter.