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US 10,539,234 B2Granted
Vehicle and vehicle control method
AssigneeHonda Motor Co., Ltd.
InventorShigeru Kanehara
Life of this patent
Estimating the term…
Abstract
A frequency of a harmonic of a drive source frequency of a rotary drive source is defined as a harmonic frequency, a resonant frequency of a torque transmitting rotary body is defined as a rotary body resonant frequency, and a resonant frequency of an endless belt is defined as a belt resonant frequency. A control device of a vehicle controls the belt resonant frequency in a manner so as to suppress a triple overlapping state in which the drive source frequency or the harmonic frequency, the rotary body resonant frequency, and the belt resonant frequency coincide with or closely approximate each other.
Claims17
A vehicle comprising:
- a rotary drive source configured to generate a drive torque for the vehicle;
- a continuously variable transmission arranged in a power transmission path from the rotary drive source to vehicle wheels, and including a drive pulley, a driven pulley, and an endless belt;
- a torque transmitting rotary body configured to transmit the drive torque in the power transmission path;
- a drive source frequency sensor configured to acquire a drive source frequency, which is a rotational frequency of the rotary drive source;
- and
- a control device configured to control the continuously variable transmission;
- wherein, when a frequency of a harmonic of the drive source frequency is defined as a harmonic frequency, a resonant frequency of the torque transmitting rotary body is defined as a rotary body resonant frequency, and a resonant frequency of the endless belt is defined as a belt resonant frequency, the control device controls the belt resonant frequency in a manner so as to suppress a triple overlapping state in which the drive source frequency or the harmonic frequency, the rotary body resonant frequency, and the belt resonant frequency coincide with or closely approximate each other.
4 more elements
A control method for a vehicle, the vehicle comprising:
- a rotary drive source configured to generate a drive torque for the vehicle;
- a continuously variable transmission arranged in a power transmission path from the rotary drive source to vehicle wheels, and including a drive pulley, a driven pulley, and an endless belt;
- a torque transmitting rotary body configured to transmit the drive torque in the power transmission path;
- a drive source frequency sensor configured to acquire a drive source frequency, which is a rotational frequency of the rotary drive source;
- and
- a control device configured to control the continuously variable transmission;
- the control method comprising, with the control device, controlling a belt resonant frequency in a manner so as to suppress a triple overlapping state in which the drive source frequency or a harmonic frequency, a rotary body resonant frequency, and a belt resonant frequency coincide with or closely approximate each other, wherein the harmonic frequency denotes a frequency of a harmonic of the drive source frequency, the rotary body resonant frequency denotes a resonant frequency of the torque transmitting rotary body, and the belt resonant frequency denotes a resonant frequency of the endless belt.
4 more elements
A vehicle comprising:
- a rotary drive source configured to generate a drive torque for the vehicle;
- a continuously variable transmission arranged in a power transmission path from the rotary drive source to vehicle wheels, and including a drive pulley, a driven pulley, and an endless belt;
- a torque transmitting rotary body configured to transmit the drive torque in the power transmission path;
- a drive source frequency sensor configured to acquire a drive source frequency, which is a rotational frequency of the rotary drive source;
- a vehicle velocity sensor configured to acquire a vehicle velocity of the vehicle;
- and
- a control device configured to control the rotary drive source based on the drive source frequency and the vehicle velocity;
- wherein, when a frequency of a harmonic of the drive source frequency is defined as a harmonic frequency, a resonant frequency of the torque transmitting rotary body is defined as a rotary body resonant frequency, and a resonant frequency of the endless belt is defined as a belt resonant frequency, the control device controls the drive source frequency in a manner so as to suppress a triple overlapping state in which the drive source frequency or the harmonic frequency, the rotary body resonant frequency, and the belt resonant frequency coincide with or closely approximate each other.
5 more elements
A control method for a vehicle, the vehicle comprising:
- a rotary drive source configured to generate a drive torque for the vehicle;
- a continuously variable transmission arranged in a power transmission path from the rotary drive source to vehicle wheels, and including a drive pulley, a driven pulley, and an endless belt;
- a torque transmitting rotary body configured to transmit the drive torque in the power transmission path;
- a drive source frequency sensor configured to acquire a drive source frequency, which is a rotational frequency of the rotary drive source;
- a vehicle velocity sensor configured to acquire a vehicle velocity of the vehicle;
- and
- a control device configured to control the rotary drive source based on the drive source frequency and the vehicle velocity;
- the control method comprising, with the control device, controlling the drive source frequency in a manner so as to suppress a triple overlapping state in which the drive source frequency or a harmonic frequency, a rotary body resonant frequency, and a belt resonant frequency coincide with or closely approximate each other, wherein the harmonic frequency denotes a frequency of a harmonic of the drive source frequency, the rotary body resonant frequency denotes a resonant frequency of the torque transmitting rotary body, and the belt resonant frequency denotes a resonant frequency of the endless belt.
5 more elements
Dependencies are inferred from the claim text.