Electromobile control device

A control device for an electromobile provided with a shunt motor comprising:

• command means for generating an output torque command for said shunt motor in accordance with an angle of depression of an accelerator pedal;
• memory means for storing predetermined plural pairs of patterns respectively indicating armature and field currents capable of generating an output torque of said shunt motor indicated by said output torque command in such a manner as to produce a minimum loss in the driving system of said electromobile;
• a microprocessor for delivering an armature current command and a field current command corresponding respectively to said armature and field currents producing said minimum loss, in a predetermined processing order, on the basis of said output torque command and said predetermined patterns;
• armature control means for passing an armature current corresponding to said armature current command through the armature winding of said shunt motor;
• and
• field control means for passing a field current corresponding to said field current command through the field winding of said shunt motor, said field control means being operative independent of said armature control means.

A control device for an electromobile provided with a shunt motor comprising:

• command means for generating an output torque command for said shunt motor in accordance with the angle of depression of an accelerator pedal;
• pattern generating means for storing, as predetermined patterns, values of armature and field currents capable of generating an output torque of said shunt motor indicated by said output torque command in such a manner as to produce a minimum loss in the driving system of said electromobile, and including means for generating an optimum armature current command and an optimum field current command in accordance with said predetermined patterns and said output torque command;
• armature control means for passing an armature current corresponding to said armature current command through the armature winding of said shunt motor;
• field control means for passing a field current corresponding to said field current command through the field winding of said shunt motor;
• and
• means for detecting at least one of an armature current flowing through said armature winding and a field current flowing through said field winding, said detecting means providing an output indicative of the detected value, and said pattern generating means generating said armature current command and said field current command independently of the output of said detecting means, at least one of said armature control means and said field control means being responsive to the associated output of said detecting means.

A control device for a driving system of an electromobile provided with a shunt motor comprising:

• a command means for generating an output torque command for said shunt motor in accordance with an angle of depression of an accelerator pedal;
• memory means for storing beforehand an output torque command indicating an output torque of said shunt motor, and patterns of an armature current and a field current which produce the output torque of the shunt motor assuring the minimum loss in said driving system of the electromobile;
• and
• a microprocessor for, upon receiving said putput torque command, taking in from said memory means a relationship between said output torque command and said armature current and a relationship between said output torque command and said field current which assure the minimum loss in said driving system of the electromobile, in order to calculate and generate an armature current command and a field current command, said microprocessor controlling said armature current to be supplied to an armature winding and said field current to be supplied to a field winding independently to become equal to said armature current command and said field current command, respectively.

A control device for an electromobile provided with a shunt motor comprising:

• command means for generating an output torque command for said shunt motor in accordance with the angle of depression of an accelerator pedal;
• pattern generating means for storing, as predetermined patterns, plural pairs of values of armatures and field currents capable of generating an output torque of said shunt motor indicated by said output torque command in such a manner as to produce a minimum loss in the driving system of said electromobile, and including means for generating an armature current command and a field current command in accordance with said predetermined patterns and said output torque command;
• armature control means for passing an armature current corresponding to said armature current command through the armature winding of said shunt motor;
• field control means for passing a field current corresponding to said field current command through the field winding of said shunt motor;
• and
• means for detecting at least one of the armature current flowing through said armature winding and the field current flowing through said field winding, said detecting means providing an output indicative of the detected value, and said pattern generating means generating said armature current command and said field current command indpendently of the output of said detecting means, at least one of said armature control means and said field control means being responsive to the associated output of said detecting means.