Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
118 words
A generator system for an internal combustion
engine, comprising: an induction machine which includes a rotor and a
stator each having a polyphase winding, the rotor being
rotated by transmitting a rotating motion of an internal
combustion engine which is operated at variable speeds; rotating magnetic field generating means for
electrically generating a rotating magnetic field in the
rotor; and control means for controlling a speed of the
rotating magnetic field in the rotor, the control means setting a target value of a
relative speed of the rotating magnetic field with respect
to the stator, and controlling a speed of the rotating
magnetic field on the basis of the target value and a
rotation speed of the rotor.
Claim 2
Dependent Claim
52 words
The generator system for an internal combustion
engine according to claim 1, wherein the control means sets
the target value so that a power generated by the induction
machine is within a predetermined range, and controls a
speed of the rotating magnetic field in accordance with a
rotation speed of the rotor.
Claim 3
Dependent Claim
52 words
The generator system for an internal combustion
engine according to claim 1, wherein the control means sets
the target value so that a driving torque of the induction
machine is within a predetermined range, and controls a
speed of the rotating magnetic field in accordance with a
rotation speed of the rotor.
Claim 4
Dependent Claim
58 words
The generator system for an internal combustion
engine according to claim 3, wherein the control means sets
the target value so that a power generated by the induction
machine is kept at any one of a predetermined value or more,
the predetermined value or less and the predetermined
value, and controls the speed of the rotating magnetic
field.
Claim 5
Dependent Claim
58 words
The generator system for an internal combustion
engine according to claim 3, wherein the control means sets
the target value so that a driving torque of the induction
machine is kept at any one of a predetermined value or more,
the predetermined value or less and the predetermined
value, and controls the speed of the rotating magnetic
field.
Claim 6
Dependent Claim
34 words
The generator system for an internal combustion
engine according to claim 1, wherein the control means
controls the target value of the relative speed as a
function of a temperature of the induction machine.
Claim 7
Dependent Claim
63 words
The generator system for an internal combustion
engine according to claim 1, wherein the control means sets
a relative speed faster than a current relative speed as the
target value if a charging quantity of a battery charged by
the induction machine is insufficient, and sets a relative
speed slower than the current relative speed if the
charging quantity of battery is sufficient.
Claim 8
Dependent Claim
39 words
The generator system for an internal combustion
engine according to claim 2, wherein the control means sets
the target value so that the power generated by the
induction machine is not less than power consumed by an
electric load.
Claim 9
Dependent Claim
34 words
The generator system for an internal combustion
engine according to claim 3, wherein the control means sets
the target value in accordance with running states of
vehicle which is equipped with the generator system.
Claim 10
Dependent Claim
38 words
The generator system for an internal
combustion engine according to claim 9, wherein the control
means sets the target value so that the driving torque of
the induction machine increases when the vehicle is in a
braking state.
Claim 11
Dependent Claim
38 words
The generator system for an internal
combustion engine according to claim 9, wherein the control
means sets the target value so that the driving torque of
the induction machine decreases when the vehicle is in an
accelerating state.
Claim 12
Dependent Claim
106 words
The generator system for an internal
combustion engine according to claim 3, wherein when an
electric load varies, the control means sets a temporary
target value so that the electric load after varied is
powered without causing a variation of the driving torque,
and controls the speed of the rotating magnetic field
accordingly, and thereafter, sets a final target value of
the relative speed so that the electric load after varied is
powered with a different driving torque from that
corresponding to the temporary target value, and then,
gradually carries out a power generation control with the
variation of driving torque using the final target value.
Claim 13
Dependent Claim
33 words
The generator system for an internal
combustion engine according to claim 12, wherein the final
target value is within a range where the power generation
efficiency of the induction machine is the maximum.