US 2024/0199112 A1 · CIRCUIT AND CONTROL METHOD THEREOF

Abstract

This application provides a circuit, including: a first circuit unit, where a first end of the first circuit unit is configured to connect to an output end of a first inverter, a second end of the first circuit unit is configured to connect to a motor, and the first circuit unit is configured to be in a disconnected state under a first condition; and a second circuit unit, where the second circuit unit is configured to absorb an energy shock, a first end of the second circuit unit is connected to the first end of the first circuit unit, and a second end of the second circuit unit is connected to the second end of the first circuit unit.

Claims20

Dependent claims

A circuit, comprising:

a first circuit unit, wherein a first end of the first circuit unit is configured to connect to an output end of a first inverter, a second end of the first circuit unit is configured to connect to a motor, and the first circuit unit is configured to be in a disconnected state under a first condition;
and
a second circuit unit, wherein the second circuit unit is configured to absorb an energy shock, a first end of the second circuit unit is connected to the first end of the first circuit unit, and a second end of the second circuit unit is connected to the second end of the first circuit unit.

A circuit control method, wherein a circuit comprises a first circuit unit and a second circuit unit, a first end of the first circuit unit is configured to connect to an output end of a first inverter, a second end of the first circuit unit is configured to connect to a motor, the first circuit unit is configured to be in a disconnected state under a first condition, the second circuit unit is configured to absorb an energy shock, a first end of the second circuit unit is connected to the first end of the first circuit unit, and a second end of the second circuit unit is connected to the second end of the first circuit unit;

and
the method comprises:
obtaining a rotational speed of the motor;
if the rotational speed of the motor is less than a first threshold, determining whether the first condition is met;
and
when the first condition is met, controlling the first circuit unit to be in the disconnected state.

3 more elements

A circuit control apparatus, wherein a circuit comprises a first circuit unit and a second circuit unit, a first end of the first circuit unit is configured to connect to an output end of a first inverter, a second end of the first circuit unit is configured to connect to a motor, the first circuit unit is configured to be in a disconnected state under a first condition, the second circuit unit is configured to absorb an energy shock, a first end of the second circuit unit is connected to the first end of the first circuit unit, and a second end of the second circuit unit is connected to the second end of the first circuit unit;

and
the control apparatus comprises:
an obtaining unit, configured to obtain a rotational speed of the motor;
and
a control unit, configured to:
when the rotational speed of the motor is less than a first threshold, determine whether the first condition is met, wherein
the control unit is further configured to:
when the first condition is met, control the first circuit unit to be in the disconnected state.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/590,621Filed 28 Feb 2024

Priority

30 Aug 2021

Published

20 Jun 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

B62D 5/0481
Characterised by control features of the drive means as such: monitoring the steering system, e.g. failures
B62D 5/0487
Monitoring the steering system, e.g. failures: detecting motor faults
B62D 5/046
Characterised by control features of the drive means as such: controlling the motor
H02H 3/20
Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working…:…

Circuit and control method thereof

Life of this patent

Circuit and control method thereof

Life of this patent

Abstract

Claims20