Disclosed is a control device for a vehicle drive device whereby an improvement in vehicle response to accelerator operation by the driver can be achieved, in a vehicle equipped with an internal combustion engine, a supercharger and an automatic transmission. Gear ratio selection control means (80), when the engine (12) is operating in NA condition, if the engine (12) comes to operate in a supercharged condition on change of ratio of the automatic transmission (16) to a first gear ratio (γ1at) in accordance with the gear-change map, performs gear ratio selection control so as to alter the method of selection of the gear ratio (γat) of the automatic transmission (16) in accordance with an increased rate (SPacc) of opening (Acc) of the accelerator. Specifically, in this gear ratio selection control, at the side where the increased rate (SPacc) of opening (Acc) of the accelerator is least, the automatic transmission (16) changes to a first gear ratio (γ1at), but, at the side where the increased rate (SPacc) of degree of opening (Acc) of the accelerator is greatest, the engine (12) is still maintained in the aforementioned NA condition and the automatic transmission (16) is changed to a second gear ratio (γ2at), which is larger than the first gear ratio (γ1at).

Control device for vehicle drive device

A driving/braking force manipulation control input of a k-th wheel, which denotes one or more specific wheels among a plurality of wheels of a vehicle, is determined such that a required condition concerning a relationship among a road surface reaction force that may act from a road surface on the k-th wheel on the basis of the detected values or estimated values of a side slip angle and a friction characteristic of the k-th wheel, a feedback control input related to the driving/braking force of the k-th wheel for bringing a difference between a state amount of the vehicle and a reference state amount close to zero, a driving/braking force feedforward control input based on a drive manipulated variable supplied by a driver of the vehicle, and a k-th wheel driving/braking force manipulation control input is satisfied. This arrangement makes it possible to properly control a motion of an actual vehicle to a desired motion while properly considering the characteristics of a road surface reaction force acting from a road surface on a wheel.

Vehicle Control Device

A motor vehicle is equipped with an outside air introduction assembly 104 functioning to introduce the outside air into a radiator 92 in an engine cooling system during driving, as well as with an outside air introduction assembly 114 functioning to introduce the outside air into an engine 22 during driving. The motor vehicle is also equipped with shutter plates 106 capable of regulating the amount of the outside air to be introduced by the outside air introduction assembly 104 , as well as with shutter plates 116 capable of regulating the amount of the outside air to be introduced by the outside air introduction assembly 114 . The shutter plates 106 and the shutter plates 116 are individually actuated and controlled to increase the amount of the outside air to be introduced by the outside air introduction assembly 104 and the amount of the outside air to be introduced by the outside air introduction assembly 114 with an increase of temperature of cooling water detected as a cooling water temperature Twe in the engine cooling system. Such actuation and control assures the adequate cooling performances to cool down the cooling water by the radiator 92 and to cool down the engine 22.

Motor vehicle and control method of motor vehicle

An engine and an electronic control unit perform cooling capacity increase control for compensating for a insufficiency of the cooling capacity of a cooling device. The electronic control unit performs a variety of control for a vehicle, including control of the cooling device. At that time, the electronic control unit calculates the target value of the cooling capacity of the cooling device, calculates the estimate value of the cooling capacity that will be able to be exerted in the future under the current control, compares the target value and the estimate value, and when it is determined from the result of the comparison that the cooling capacity will be insufficient, performs the cooling capacity increase control. The electronic control unit changes the contents of the cooling capacity increase control according to the degree of insufficiency of the estimate value with respect to the target value.

Control device for vehicle

The invention provides an electric car power system which comprises a battery pack, a battery heater, a battery manager, a distribution box, a motor, a motor controller and an isolation inductor The battery heater is connected with the battery pack The battery manager is respectively connected with the battery pack and the battery heater and used for controlling the battery heater to heat the battery pack according to temperature of the battery pack and throttle opening change velocity when the temperature of the battery pack is lower than a first heating temperature threshold and the residual electric quantity is higher than a shutdown electric quantity threshold The distribution box is used for distributing voltage output by the battery pack The motor controller is connected with the motor and the distribution box and provided with a first input end, a second input end and a pre-charging capacitor The pre-charging capacitor is connected between the first input end and the second input end and matched with the isolation inductor The power system is capable of realizing heating and greatly lowering limitation on using an electric car in a low-temperature environment, high in heating efficiency, low in cost, and highly practical The invention further provides an electric car battery heating method and an electric car

Electric car and electric car power system and battery heating method

PROBLEM TO BE SOLVED: To improve aerodynamic performance of a hybrid car capable of traveling using the power from an engine and the power from a motor. SOLUTION: Fin closure control to close fins adjusting introduction of travel air to the radiator of an engine cooling system is performed (step S180) when engine cooling water temperature Twe during traveling by only the power from the motor is lower than the threshold Th3 of temperature at which the engine reaches high temperature and motor cooling water temperature Twm is lower than the threshold Th4 of temperature at which an inverter cooled together with the motor with motor cooling water reaches high temperature (steps S140, S150), when the engine does not satisfy a heating request to a heater (steps S110, S120) or when the warming-up of the engine is not completed (step S130), when the heating request to the heater is made. COPYRIGHT: (C)2007,JPO&INPIT

Hybrid car and control method thereof

PROBLEM TO BE SOLVED: To provide a meter display device capable of displaying a condition of variation of a plurality of parameters related to a hybrid automobile; to provide its method; and to provide a hybrid automobile with the display device mounted thereon. SOLUTION: A meter ECU determines whether a shift position SP is set in an S-range, that is, a sequential range or not, and displays a power meter 92 showing a condition of variation of an engine output power Pe outputted from an engine on a meter display panel 90 when it is not set in the S-range. When it is set in the S-range, the electronic control unit for a hybrid executes rendering control of engine revolutions for once decreasing engine revolutions as if upshift were actually executed when an upshift operation is carried out, and for once increasing the revolutions of the engine 22 as if downshift were actually executed when a downshift operation is carried out, whereby a tachometer 94 showing the condition of variation of the engine revolutions is displayed on the meter display panel 90. COPYRIGHT: (C)2006,JPO&NCIPI

Meter display device, its method and hybrid automobile

PROBLEM TO BE SOLVED: To suppress the power consumption of auxiliary machines of a drive unit while securing the normal drive of the drive unit. SOLUTION: The power device comprises: a high-voltage battery that feeds power necessary for the drive of the drive unit; a low-voltage battery that feeds power to an auxiliary machine that operates not accompanied by the operation of an operator for normally driving the drive unit, and an auxiliary machine that operates accompanied by the operation of the other operator; and a DC/DC converter that converts the power of a high-voltage system to a low voltage, and feeds it to a low-voltage system. When the operation of the auxiliary machine that operates accompanied by the operation of the operator is indicated, a high-voltage VHi is set to an output voltage Vout (S130) when the auxiliary machine for normally driving the drive unit is in a state to be operated at a high load (an output-voltage lowering allowable flag F is 0 in value), and when the auxiliary machine for normally driving the drive unit is not in a state to be operated at the high load (when the output-voltage lowering allowable flag F is 1 in value), a low voltage VLo is set to the output voltage Vout (S140), thus controlling the DC/DC converter. COPYRIGHT: (C)2006,JPO&NCIPI

Drive unit power device, automobile mounted with the same, and control method of power device

PROBLEM TO BE SOLVED: To raise more shifting feeling in a vehicle which can travel by a moderate torque from an electric motor. SOLUTION: While accelerator-off and traveling are performed when down shifting is performed (S160), a demand torque correction value Tα(T) is set up in a vehicle speed V so that the torque variation may become larger as shifting stage of down shifting is smaller (S180) and the vehicle speed V is larger, after down shifting until a predetermined time passes. The demand torque correction value Tα(T) is added to the demand torque Tr* which should be output to the drive shaft, and the demand torque Tr* is reset (S190), and the motor is controlled so that the vehicle performs a moderate cruise by a demand torque Tr*. Thereby, in the vehicle of the type having an automatic shift with stages which changes gear and outputs the power from the engine, since the torque variation and the same torque variation which interact on the drive shaft temporarily by an engine rotation change can be made to interact when the down shifting is performed, shifting feeling can be improved. COPYRIGHT: (C)2006,JPO&NCIPI

Vehicle and method of controlling it

PROBLEM TO BE SOLVED: To prevent a delay at a time of re-acceleration and re-start after the prohibition of the change of a gear ratio of a transmission during regeneration control. SOLUTION: In this hybrid automobile, when it is determined in a step S120 that it is the gear shift timing of a transmission, it is determined in a step S120 whether the braking power Pm2* of a motor MG2 is a threshold Pth or less, and the change of the gear ratio of the transmission is started in a step S145 if it is determined that the braking power Pm2* of the motor MG2 is the threshold Pth or less. Since the gear ratio is changed when regeneration energy is small and the efficient recovery of the regeneration energy cannot be expected, power from the motor MG2 can be output to a drive shaft at a gear ratio corresponding to an operation state and a delay at a time of acceleration and start can be prevented even in the case that an operator wants to re-accelerate after deceleration by regeneration braking and wants to start a vehicle after stop. COPYRIGHT: (C)2006,JPO&NCIPI

Yasuhiro Kashiwa

Papers

Hybrid car and control method thereof

Meter display device, its method and hybrid automobile

Drive unit power device, automobile mounted with the same, and control method of power device

Vehicle and method of controlling it

Automobile and control method thereof