摘要:
When a vehicle speed V is out of a non-rotational synchronizing range, V≦Vref1 or Vref2≦V, in a neutral state of a transmission set in response to an operation of a gearshift lever to an N (neutral) position during operation of an engine, the engine and a motor MG1 are controlled to make a ring gear shaft rotate at a target rotation speed Nr*, which is expected in response to an operation of the gearshift lever to a D (drive) position or an R (reverse) position, and to enable self-sustained operation of the engine at the greater rotation speed between an idle speed Nidl and a minimum engine speed Nmin calculated from a minimum rotation speed Nm1min of the motor MG1. Such control effectively reduces a potential shock occurring in the case of the operation of the gearshift lever from the N position to the D position or the R position without causing negative overspeed of the motor MG1.
摘要:
When a vehicle speed V is out of a non-rotational synchronizing range, V≦Vref1 or Vref2≦V, in a neutral state of a transmission set in response to an operation of a gearshift lever to an N (neutral) position during operation of an engine, the engine and a motor MG1 are controlled to make a ring gear shaft rotate at a target rotation speed Nr*, which is expected in response to an operation of the gearshift lever to a D (drive) position or an R (reverse) position, and to enable self-sustained operation of the engine at the greater rotation speed between an idle speed Nidl and a minimum engine speed Nmin calculated from a minimum rotation speed Nm1min of the motor MG1. Such control effectively reduces a potential shock occurring in the case of the operation of the gearshift lever from the N position to the D position or the R position without causing negative overspeed of the motor MG1.
摘要:
A vehicle includes a drive device applying a driving force to a wheel, a brake device applying a braking force to the vehicle, and a control device controlling the drive device and the brake device. When the traveling direction and the acting direction of the driving force are opposite, the control device causes the drive device to generate a driving force corresponding to a driving force demand in the event of the drive device not entering an operation disallowed region even if the driving force corresponding to the driving force command is generated at the drive device, and causes the brake device to operate according to the drive driving force demand in the event of the drive device entering the operation disallowed region if the driving force corresponding to said driving force demand is generated at said drive device.
摘要:
At the time of a change of a gearshift position SP from a neutral (N) position to a drive (D) position (step S220), when a vehicle speed V is not lower than a preset reference speed Vref1 (step S230: yes), the control procedure of the invention connects a power shaft with a driveshaft and attains an actual gear change of a transmission to a first speed (step S240). The reference speed Vref1 may be set to a slightly higher vehicle speed than an upper limit of a specific vehicle speed range having a potential for over rotation of a first motor by the gear change of the transmission to the first speed. When the vehicle speed V is lower than the preset reference speed Vref1 (step S230: no), on the other hand, the control procedure prohibits the connection of the power shaft with the driveshaft and the actual gear change of the transmission to the first speed. This arrangement desirably prevents the over rotation of the first motor caused by the gear change of the transmission to the first speed in the state that the vehicle speed V is lower than the preset reference speed Vref1.
摘要:
At the time of a change of a gearshift position SP from a neutral (N) position to a drive (D) position (step S220), when a vehicle speed V is not lower than a preset reference speed Vref1 (step S230: yes), the control procedure of the invention connects a power shaft with a driveshaft and attains an actual gear change of a transmission to a first speed (step S240). The reference speed Vref1 may be set to a slightly higher vehicle speed than an upper limit of a specific vehicle speed range having a potential for over rotation of a first motor by the gear change of the transmission to the first speed. When the vehicle speed V is lower than the preset reference speed Vref1 (step S230: no), on the other hand, the control procedure prohibits the connection of the power shaft with the driveshaft and the actual gear change of the transmission to the first speed. This arrangement desirably prevents the over rotation of the first motor caused by the gear change of the transmission to the first speed in the state that the vehicle speed V is lower than the preset reference speed Vref1.
摘要:
The control procedure of the invention sets a target rotation speed Ne* and a target torque Te* of an engine corresponding to a torque demand Td* required for driving the vehicle (steps S100 to S120). In response to an upshift request for a gear of a transmission, the control procedure sets a positive pre-upshift target rotation speed Nmtag to a target rotation speed Nm1* of a first motor (step S230). The control procedure changes the target rotation speed Ne* of the engine to a specific rotation speed corresponding to the pre-upshift target rotation speed Nmtag of the first motor (step S240) and subsequently implements an actual change of the gear in the transmission (step S310). This arrangement effectively restrains a battery from being overcharged with excess electric power.
摘要:
The control procedure of the invention sets a target rotation speed Ne* and a target torque Te* of an engine corresponding to a torque demand Td* required for driving the vehicle (steps S100 to S120). In response to an upshift request for a gear of a transmission, the control procedure sets a positive pre-upshift target rotation speed Nmtag to a target rotation speed Nm1* of a first motor (step S230). The control procedure changes the target rotation speed Ne* of the engine to a specific rotation speed corresponding to the pre-upshift target rotation speed Nmtag of the first motor (step S240) and subsequently implements an actual change of the gear in the transmission (step S310). This arrangement effectively restrains a battery from being overcharged with excess electric power.
摘要:
An ECU executes a program including the steps of: providing control over an engine coupled to a carrier for driving a first MG coupled to a sun gear in a power split device, and providing control over a second MG for allowing a ring gear to stop; expecting that a shift operation will be performed when a brake operation is performed; and stopping providing the control over the engine for driving the first MG and stopping providing the control over the second MG for allowing the ring gear to stop.
摘要:
A control apparatus for a vehicular drive system including an electric differential portion and a mechanical power transmitting portion which are disposed in series in a power transmitting path between an engine and a drive wheel of a vehicle, the control apparatus being configured to limit an output of the engine according to a difference between an actual rotating speed of an input rotary member of the mechanical power transmitting portion, and a theoretical rotating speed calculated from an actual vehicle speed and a presently established speed ratio of the mechanical power transmitting portion, whereby reduction of torque capacity of an input clutch provided in the mechanical power transmitting portion does not cause an excessive rise of the rotating speed of a rotary member which is located on one side of the input clutch nearer to the engine, and an excessive rise of the rotating speed of an electric motor connected to the input rotary member.
摘要:
An ECU executes a program including the steps of: providing control over an engine coupled to a carrier for driving a first MG coupled to a sun gear in a power split device, and providing control over a second MG for allowing a ring gear to stop; expecting that a shift operation will be performed when a brake operation is performed; and stopping providing the control over the engine for driving the first MG and stopping providing the control over the second MG for allowing the ring gear to stop.