Hybrid vehicle and control method of the same
First Claim
1. A hybrid vehicle that outputs power to a driveshaft, said hybrid vehicle comprising:
- an internal combustion engine that has an output shaft and outputs power;
an electric power-mechanical power input output mechanism that is connected with the output shaft of the internal combustion engine and with the driveshaft and outputs at least part of the power of the internal combustion engine to the driveshaft with input and output of electric power while outputting a resistant braking force by a rotational resistance arising in the internal combustion engine to the driveshaft with input of electric power;
a motor that converts power of the driveshaft to electric power to output a regenerative braking force to the driveshaft;
a braking force output unit that outputs a braking force to the driveshaft; and
a braking control module that sets a resistant braking force demand to be output from the electric power-mechanical power input output mechanism to the driveshaft and a regenerative braking force demand to be output from the motor to the driveshaft and controls the electric power-mechanical power input output mechanism and the motor to ensure output of the resistant braking force demand and the regenerative braking force demand to the driveshaft, when the electric power-mechanical power input output mechanism totally fails to output the resistant braking force demand or outputs only part of the resistant braking force demand or when the motor totally fails to output the regenerative braking force demand or outputs only part of the regenerative braking force demand, said braking control module executing braking force supplement control, which controls the electric power-mechanical power input output mechanism, the motor, and the braking force output unit to ensure supplementary output of an insufficient braking force from at least one of the electric power-mechanical power input output mechanism, the motor, and the braking force output unit.
1 Assignment
0 Petitions
Accused Products
Abstract
In the gate shutdown state of all switching elements included in an inverter for a motor MG1 (step S114) or in the gate shut downstate of all switching elements included in an inverter for a motor MG2 (step S122), the braking control of the invention uses disk brakes to output a supplementary braking force and compensate for an insufficiency of braking force. This arrangement effectively prevents an unintentional decrease of braking force applied to a hybrid vehicle even in the event of insufficiency in engine resistant braking force output from the motor MG1 to a driveshaft or in regenerative braking force output from the motor MG2 to the driveshaft.
-
Citations
12 Claims
-
1. A hybrid vehicle that outputs power to a driveshaft, said hybrid vehicle comprising:
-
an internal combustion engine that has an output shaft and outputs power;
an electric power-mechanical power input output mechanism that is connected with the output shaft of the internal combustion engine and with the driveshaft and outputs at least part of the power of the internal combustion engine to the driveshaft with input and output of electric power while outputting a resistant braking force by a rotational resistance arising in the internal combustion engine to the driveshaft with input of electric power;
a motor that converts power of the driveshaft to electric power to output a regenerative braking force to the driveshaft;
a braking force output unit that outputs a braking force to the driveshaft; and
a braking control module that sets a resistant braking force demand to be output from the electric power-mechanical power input output mechanism to the driveshaft and a regenerative braking force demand to be output from the motor to the driveshaft and controls the electric power-mechanical power input output mechanism and the motor to ensure output of the resistant braking force demand and the regenerative braking force demand to the driveshaft, when the electric power-mechanical power input output mechanism totally fails to output the resistant braking force demand or outputs only part of the resistant braking force demand or when the motor totally fails to output the regenerative braking force demand or outputs only part of the regenerative braking force demand, said braking control module executing braking force supplement control, which controls the electric power-mechanical power input output mechanism, the motor, and the braking force output unit to ensure supplementary output of an insufficient braking force from at least one of the electric power-mechanical power input output mechanism, the motor, and the braking force output unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A control method of a hybrid vehicle that includes:
-
an internal combustion engine that has an output shaft and outputs power;
an electric power-mechanical power input output mechanism that is connected with the output shaft of the internal combustion engine and with a driveshaft and outputs at least part of the power of the internal combustion engine to the driveshaft with input and output of electric power while outputting a resistant braking force by a rotational resistance arising in the internal combustion engine to the driveshaft with input of electric power;
a motor that converts power of the driveshaft to electric power to output a regenerative braking force to the driveshaft; and
a braking force output unit that outputs a braking force to the driveshaft, said control method comprising the steps of;
setting a resistant braking force demand to be output from the electric power-mechanical power input output mechanism to the driveshaft and a regenerative braking force demand to be output from the motor to the driveshaft and controlling the electric power-mechanical power input output mechanism and the motor to ensure output of the resistant braking force demand and the regenerative braking force demand to the driveshaft, and when the electric power-mechanical power input output mechanism totally fails to output the resistant braking force demand or outputs only part of the resistant braking force demand or when the motor totally fails to output the regenerative braking force demand or outputs only part of the regenerative braking force demand, executing braking force supplement control, which controls the electric power-mechanical power input output mechanism, the motor, and the braking force output unit to ensure supplementary output of an insufficient braking force from at least one of the electric power-mechanical power input output mechanism, the motor, and the braking force output unit.
-
Specification