Straddle-Type Vehicle and Combustion Controller for Straddle-Type Vehicle
First Claim
1. A straddle-type vehicle, comprising:
- a vehicle body frame;
an engine mounted on the vehicle body frame;
a combustion adjusting device for adjusting the combustion condition of the engine; and
a combustion controller for controlling the combustion adjusting device, characterized in that;
the combustion controller controls the combustion adjusting device such that the maximum point of a sound pressure level waveform of an audible sound wave generated from the engine or the vehicle body frame is shifted by a predetermined amount or larger within a predetermined period at least in some of the operation conditions of the engine.
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0 Petitions
Accused Products
Abstract
A straddle-type vehicle 30 includes a vehicle body frame 31, an engine 1 mounted on the vehicle body frame 31, combustion adjusting devices (fuel injection valves) 14 and 15 for adjusting the combustion condition of the engine 1, and a combustion controller (ECU) 22 for controlling the fuel injection valves 14 and 15. The ECU 22 controls the fuel injection valves 14 and 15 such that the maximum point of a sound pressure level waveform of an audible sound wave generated from the engine 1 or the vehicle body frame 31 is shifted by a predetermined amount or larger within a predetermined period at least in some of the operation conditions of the engine 1.
8 Citations
22 Claims
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1. A straddle-type vehicle, comprising:
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a vehicle body frame; an engine mounted on the vehicle body frame; a combustion adjusting device for adjusting the combustion condition of the engine; and a combustion controller for controlling the combustion adjusting device, characterized in that; the combustion controller controls the combustion adjusting device such that the maximum point of a sound pressure level waveform of an audible sound wave generated from the engine or the vehicle body frame is shifted by a predetermined amount or larger within a predetermined period at least in some of the operation conditions of the engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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- 15. A combustion controller for a straddle-type vehicle which controls a combustion adjusting device for adjusting the combustion condition of an engine mounted on a vehicle body frame, characterized in that the combustion controller controls the combustion adjusting device such that the maximum point of a sound pressure level waveform of an audible sound wave generated from the engine or the vehicle body frame is shifted by a predetermined amount or larger within a predetermined period at least in some of the operation conditions of the engine.
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17. A straddle-type vehicle, comprising:
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a vehicle body frame; an engine mounted on the vehicle body frame; a fuel supply device for adjusting the amount of fuel to be supplied to the engine; and a combustion controller for controlling the fuel supply device, characterized in that; the combustion controller controls the fuel supply device such that the amount of fuel to be supplied to a specific cylinder of the engine is shifted by 10% or larger at least in a part of the idling condition of the engine to change a sound pressure level of an audible sound wave generated from the engine or the vehicle body frame.
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18. A combustion controller for a straddle-type vehicle which controls a fuel supply device for adjusting the amount of fuel to be supplied to an engine mounted on a vehicle body frame, characterized by controlling the fuel supply device such that the amount of fuel to be supplied to a specific cylinder of the engine is shifted by 10% or larger at least in a part of the idling condition of the engine to change a sound pressure level of an audible sound wave generated from the engine or the vehicle body frame.
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19. A straddle-type vehicle, comprising:
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a vehicle body frame; an engine mounted on the vehicle body frame; an ignition device for adjusting ignition of the engine; and a combustion controller for controlling the ignition device, characterized in that; the combustion controller controls the ignition device such that the ignition timing for a specific cylinder of the engine is shifted by 5°
or larger at least in a part of the idling condition of the engine to change a sound pressure level of an audible sound wave generated from the engine or the vehicle body frame.
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20. A combustion controller for a straddle-type vehicle which controls an ignition device for adjusting ignition of an engine mounted on a vehicle body frame, characterized by controlling the ignition device such that the ignition timing for a specific cylinder of the engine is shifted by 5°
- or larger at least in a part of the idling condition of the engine to change a sound pressure level of an audible sound wave generated from the engine or the vehicle body frame.
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21. A straddle-type vehicle, comprising:
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a vehicle body frame; an engine mounted on the vehicle body frame; an intake amount adjusting device for adjusting the intake air amount to be taken to the engine; and a combustion controller for controlling the intake amount adjusting device, characterized in that; the combustion controller controls the intake amount adjusting device such that the intake air amount to a specific cylinder of the engine is altered by 10% or larger at least in a part of the idling condition of the engine to change a sound pressure level of an audible sound wave generated from the engine or the vehicle body frame.
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22. A combustion controller for a straddle-type vehicle which controls an intake amount adjusting device for adjusting the intake air amount to be taken to an engine mounted on a vehicle body frame, characterized by controlling the intake amount adjusting device such that the intake air amount to a specific cylinder of the engine is altered by 10% or larger at least in a part of the idling condition of the engine to change a sound pressure level of an audible sound wave generated from the engine or the vehicle body frame.
Specification