Protecting device of electromobile

A protecting device of an electromobile having a control device to control a rotating speed of a motor on the basis of an accelerator signal and a brake signal, which comprises a current detecting means for detecting a value of a phase current of the motor and outputting a detecting signal, and a stopping means for stopping supply of electricity to the motor when the phase current of the motor is abnormal on the basis of the detecting signal of the current detecting means.

A protecting device of an electromobile having a control device to control a rotating speed of a motor using a primary battery as a power source on the basis of an accelerator signal and a brake signal, which comprises a current detecting means for detecting a value of a current of the primary battery and outputting a detecting signal, and a stopping means for stopping supply of electricity to the motor when the current of the primary battery is abnormal on the basis of the detecting signal of the current detecting means.

A protecting device of an electromobile having a control device to control a rotating speed of a motor using a primary battery as a power source on the basis of an accelerator signal and a brake signal, which comprises a voltage detecting means for detecting a value of a voltage of the primary battery and outputting a detecting signal, and a current limiting means for limiting a current fed to the motor by a decreasing amount of the voltage of the primary battery on the basis of the detecting signal of the detecting means.

A protecting device of an electromobile having a control device to control a rotating speed of a motor using a primary battery as the power source on the basis of an accelerator signal and a brake signal, which comprises a voltage detecting means for detecting a value of a voltage of the primary battery and outputting a detecting signal, and a current limiting means for controlling a field-weakening current fed to the motor on the basis of the detecting signal of the detecting means when the voltage of the primary battery is abnormally increased, thereby reducing a regenerative amount from the motor to the primary battery.

A protecting device of an electromobile having a control device to control a rotating speed of a motor using a primary battery as a power source on the basis of an accelerator signal and a brake signal, and a control battery to supply electricity to the control device, which comprises a voltage detecting means for detecting a value of a voltage of the control battery and outputting a detecting signal, and a stopping means for stopping supply of electricity to the motor on the basis of the detecting signal of the detecting means when the voltage of the control battery is abnormally decreased.

A protecting device of an electromobile having a control device to control a rotating speed of a motor on the basis of an accelerator signal and a brake signal, which comprises a detecting means for detecting overheat of the motor and outputting a detecting signal, and a controlling means for stopping or limiting supply of electricity to the motor in response to the detecting signal of the detecting means.

A protecting device of an electromobile having an inverter driving a motor and a control device to control a rotating speed of the motor on the basis of an accelerator signal and a brake signal, which comprises a detecting means for detecting overheat of a switching element of the inverter and outputting a detecting signal, and a controlling means for stopping or limiting supply of electricity to the motor in response to the detecting signal of the detecting means.