Abstract: A drive control device of a hybrid vehicle in which an electric power loss predictor and a target electric power calculator are arranged, a target engine power calculator calculates a target engine power based on a target driving power, target charging/discharging power, and estimated power that is an electric power loss, and a motor torque instruction value calculator calculates the torque instruction values of a plurality of motor generators using a torque balance equation including the target engine torque and an electric power balance equation including the target electric power. In the electric power balance equation, the electric power generated or consumed by the plurality of motor generators, the estimated power that is the electric power loss, and input/output electric power of the battery are included.

Abstract: A hybrid vehicle, a drive control apparatus, and a drive control method to prevent overcharging a battery, and providing an output drive force depending on a driver's request. The drive control apparatus for hybrid vehicles outputs generated power at an internal combustion engine and a motor generator through a power transmission mechanism to drive axles, and includes an output shaft fixing mechanism which fixes an internal combustion engine output shaft to disable rotation. A request drive force setter sets a request drive force depending on a driver's request. A controller executes a control based on a detected battery stored energy level to operate irrespective of a magnitude of the request drive force to stop the internal combustion engine, uses the shaft fixing mechanism to fix the output shaft, and provides travel using generated power from the motor generator.

Abstract: Objects are to set up control of a plurality of motor generators in a case where a battery is charged or discharged, to secure both a target driving force and target charging/discharging, and to have the breath of control of using electric power of the battery under a more specific condition.

Abstract: An upper rotational speed limit NengUL and a lower rotational speed limit NengLL of an engine operation prohibition area are set from an upper rotational speed limit Nmg2UL and a lower rotational speed limit Nmg2LL of a motor operation predetermined prohibition area of a second motor generator. When an engine speed target Nengt, calculated from a preset target operating line, lies in the engine operation prohibition area, the engine operating point target is corrected so that the second motor generator rotational speed target Nmg2t lies outside the motor operation prohibition area. When the engine speed target Nengt is greater than or equal to a change-direction engine speed NengCD at which direction of shift to/from an allowable range of engine operation is changed, the engine speed Neng is increased. When the engine speed target Nengt is less than the change-direction engine speed NengCD, the engine speed Neng is decreased.

Abstract: A torque applied to a one-way clutch when a first motor generator and second motor generator are operated in a motor generator drive mode is restrained or prevented from becoming excessively high by setting a first motor generator sharing ratio in response to a driving torque target for the vehicle, by controlling operation of the first motor generator in response to a first motor generator first sharing ratio when vehicle vibrations due to cogging torque are likely to take place, and by reducing the torque from the first motor generator when the driving torque target is large. Torque applied to the one-way clutch which otherwise would become excessively high immediately after engine shutdown, is restrained or prevented by reducing the torque from the first motor generator in response to a second motor generator second sharing ratio when engine downtime is short.

Abstract: In a drive control apparatus (1) of a hybrid vehicle, a provisional target engine power calculator (17D) of a controller (17) compares provisional target engine power which is calculated from a target drive power and a target charge/discharge power with a target engine power lower limit value and, when the provisional target engine power is smaller than the target engine power lower limit value, sets the target engine power lower limit value to the provisional target engine power.

Abstract: Ina drive control apparatus (1) of a hybrid vehicle, a change rate restriction value of a target engine rotational speed which is set on the basis of a vehicle speed is preset, a restriction value of the target engine rotational speed is calculated from the change rate restriction value and a previous target engine rotational speed, a target engine operation point to decide the target engine rotational speed and a target engine torque is set on the basis of the restriction value of the target engine rotational speed and the provisional target engine rotational speed, a target electric power is calculated from a difference between a target engine power which is calculated from the target engine operation point and a target drive power, and torque instruction values of a plurality of motor generators (4, 5) are calculated by using a torque balance equation including a target engine torque which is obtained from the target engine operation point and an electric power balance equation including the target electri

Abstract: Ina drive control apparatus (1) of a hybrid vehicle, provisional target engine power calculating means (17D) of control means (17) compares provisional target engine power which is calculated from a target drive power and a target charge/discharge power with a target engine power lower limit value and, when the provisional target engine power is smaller than the target engine power lower limit value, sets the target engine power lower limit value to the provisional target engine power. Motor torque instruction value operating means (17L) of the control means (17) calculates a torque instruction value of each of a plurality of motor generators (4, 5) by using a torque balance equation including a target engine torque which is obtained from a target engine operation point and an electric power balance equation including a target electric power.

Abstract: Objects of the present invention is to improve the control accuracy of the SOC of the battery in consideration of the electric power losses of a plurality of motor generators and, in accordance therewith, to secure the protection performance of the battery and to increase the energy recovery efficiency according to the regeneration. In a drive control device of a hybrid vehicle including a motor torque instruction value calculating means, an electric power loss predicting means, an electric power upper limit/lower limit value calculating means, and a target electric power calculating means are arranged, and the motor torque instruction value calculating means calculates torque instruction values of a plurality of motor generators using a torque balance equation including target engine torque required at a target engine operating point and an electric power balance equation including target electric power.

Abstract: Objects of the present invention is to improve the control accuracy of the charge state of a battery in consideration of the electric power losses of a plurality of motor generators and, in accordance therewith, to secure the protection performance of the battery, and to increase the energy recovery efficiency according to the regeneration. According to the present invention, there is provided a drive control device of a hybrid vehicle in which an electric power loss predicting means and a target electric power calculating means are arranged, a target engine power calculating means calculates target engine power based on target driving power, target charge/discharge power, and estimated power that is an electric power loss, and a motor torque instruction value calculating means calculates torque instruction values of a plurality of motor generators using a torque balance equation including target engine torque and an electric power balance equation including the target electric power.

Abstract: An object of the present invention is to perform control such that a crankshaft is stopped at a target crank angle at the time of stopping an engine of a hybrid vehicle.

Abstract: An object of the present invention is to start an engine while outputting a driving force requested from a driver.

Abstract: Ina drive control apparatus (1) of a hybrid vehicle, a change rate restriction value of a target engine rotational speed which is set on the basis of a vehicle speed is preset, a restriction value of the target engine rotational speed is calculated from the change rate restriction value and a previous target engine rotational speed, a target engine operation point to decide the target engine rotational speed and a target engine torque is set on the basis of the restriction value of the target engine rotational speed and the provisional target engine rotational speed, a target electric power is calculated from a difference between a target engine power which is calculated from the target engine operation point and a target drive power, and torque instruction values of a plurality of motor generators (4, 5) are calculated by using a torque balance equation including a target engine torque which is obtained from the target engine operation point and an electric power balance equation including the target electri

Abstract: A control unit (17) includes a regenerative coordination control unit (17D) and a vehicle speed calculation unit (17E). The regenerative coordination control unit (17D) performs a regeneration cooperative control to distribute the hydraulic braking force and the regenerative braking force. The vehicle speed calculation unit (17E) calculates a vehicle speed. The control unit (17) calculates a basic target driving force based on: an amount of accelerator operation detected by an accelerator operation amount detecting unit (32), and the vehicle speed calculated by the vehicle speed calculation unit (17E), and adds a value corresponding to the regenerative braking force distributed by the regenerative coordination control unit (17D) to the basic target driving force, thus obtaining a target driving force to be generated by motors (4 and 5). This reduces a creep driving force during vehicle running corresponding to a brake operation of a driver to reduce power consumption.

Abstract: In a drive control apparatus (1) of a hybrid vehicle, motor torque instruction value operating means (17F) of control means (17) calculates a torque instruction value of each of a plurality of motor generators (4, 5) by using a torque balance equation including a target engine torque which is obtained from a target engine operation point and an electric power balance equation including a target charge/discharge power. Thus, control of the plurality of motor generators (4, 5) in the case where there is a charge/discharge to/from a battery (18) can be performed, and both of assurance of a target drive force and assurance of a target charge/discharge can be satisfied in consideration of an operation point of an internal combustion engine (2) (engine operation point).

Abstract: Objects are to set up control of a plurality of motor generators in a case where a battery is charged or discharged, to secure both a target driving force and target charging/discharging, and to have the breath of control of using electric power of the battery under a more specific condition.

Abstract: An object of the present invention is to improve drivability and traveling feeling without influence of torque variation of an internal combustion engine on a drive torque while ensuring the compatibility with a driving force and charge/discharge by control. A drive control apparatus for a hybrid vehicle includes first and second motor-generator, a differential gear mechanism, an accelerator position detecting unit, a vehicular speed detecting unit, a battery state-of-charge detecting unit, a target drive power setting unit, a target charging/discharging power setting unit, a target engine power calculation unit, a target engine operating point setting unit, a motor torque command value operation unit. The drive control apparatus performs a feedback correction on calculated torque command values for a plurality of motor-generators.

Abstract: An upper rotational speed limit NengUL and a lower rotational speed limit NengLL of an engine operation prohibition area are set from an upper rotational speed limit Nmg2UL and a lower rotational speed limit Nmg2LL of a motor operation predetermined prohibition area of a second motor generator. When an engine speed target Nengt, calculated from a preset target operating line, lies in the engine operation prohibition area, the engine operating point target is corrected so that the second motor generator rotational speed target Nmg2t lies outside the motor operation prohibition area. When the engine speed target Nengt is greater than or equal to a change-direction engine speed NengCD at which direction of shift to/from an allowable range of engine operation is changed, the engine speed Neng is increased. When the engine speed target Nengt is less than the change-direction engine speed NengCD, the engine speed Neng is decreased.

Abstract: A torque applied to a one-way clutch when a first motor generator and second motor generator are operated in a motor generator drive mode is restrained or prevented from becoming excessively high by setting a first motor generator sharing ratio in response to a driving torque target for the vehicle, by controlling operation of the first motor generator in response to a first motor generator first sharing ratio when vehicle vibrations due to cogging torque are likely to take place, and by reducing the torque from the first motor generator when the driving torque target is large. Torque applied to the one-way clutch which otherwise would become excessively high immediately after engine shutdown, is restrained or prevented by reducing the torque from the first motor generator in response to a second motor generator second sharing ratio when engine downtime is short.

Abstract: To provide a driving source control for a hybrid motor vehicle capable of comfortably driving a motor generator by activating an internal combustion engine only at minimum necessary timings at a time of moving backward. It is a driving source control device 1 for a hybrid motor vehicle that moves by mounting an engine 2 and motor generators 4 and 5, in which a driving control unit 32 reduces a target rotational speed of the first motor generator 4, when a shift position detection unit 47 has acquired a backward moving command and a battery state of charge detection unit 36 has detected that a remaining charge amount SOC of a battery 21 is less than or equal to a setting value, at a time of an activation stopping state of the engine 2.