US 2017/0288431 A1 · BATTERY PACK AND CONNECTING CIRCUITS OF BATTERY MODULES

Abstract

A battery pack and connecting circuits of battery modules. The battery pack includes a plurality battery modules connected in series, wherein each battery module is provided with a connecting circuit. When the battery module operates normally, the connecting circuit serially connects the current battery module to the previous battery module and the succeeding battery module. When the battery module operates abnormally, the connecting circuit selectively disconnects the battery module, and if it disconnects the current battery module, it directly connects the previous battery module and the succeeding battery module in series. When a battery module is damaged abnormal, the current damaged battery module can be disconnected from the series battery pack and bypassed. As such, the previous battery module may be directly connected with the succeeding battery module, ensuring the normal connection of the series circuit.

Claims14

Dependent claims

A battery pack in a vehicle, the battery pack comprising:

a plurality of battery modules connected through a connecting circuit, the plurality of battery modules including a first battery module;
and
a control device configured to selectively disconnect any one of the plurality of battery modules from the connecting circuit, wherein:
the control device is configured to
obtain a first value for a first parameter for the first battery module;
obtain a second value for a second parameter for the first battery module;
determine whether the first battery module is in a first state based on the first value and second value;
determine whether the first battery module is in a second state based on the first value and second value;
and
when the first battery module is determined to be in the second state, generate instructions for removing the first battery module from the connecting circuits, and a warning message.

7 more elements

A method of controlling a vehicle battery pack having a plurality of battery modules connected through connecting circuits, the plurality of battery modules including a first battery module, each battery module connected to a connecting circuit, said method comprising:

monitoring multiple working parameters of the battery modules, the working parameters including a first parameter and a second parameter;
receive a first value of the first parameter for the first battery module;
receive the second parameter for the first battery module from the battery monitoring unit;
determine whether the first battery module is in a first state based on the first value and second value;
determine whether the first battery module is in a second state based on the first value and second value;
when the first battery module is determined to be in the second state, generate instructions for removing the first battery module from the connecting circuits, and a warning message.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/629,551Filed 21 Jun 2017

Priority

16 Mar 2015

Published

5 Oct 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification37 codes

B60L 3/0046
Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train: relating to electric energy…
B60L 3/12
Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy…:…
B60L 50/64
Using power supplied by batteries: constructional details of batteries specially adapted for electric vehicles
B60L 58/10
Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles: for monitoring or…

Family

Application62/133,991Us provisional application · filed 16 Mar 2015

Application62/150,848Us provisional application · filed 22 Apr 2015

Application14/883,599Continuation · filed 14 Oct 2015

Application14/967,359Continuation · filed 14 Dec 2015

Application15/629,551Continuation

US 2016/0276854 A1Published application

US 2016/0276855 A1Published application

US 9,716,392 B2Related patent

US 2017/0288431 A1This patent

From the US filing history. Foreign family members aren’t listed.

Battery pack and connecting circuits of battery modules

Life of this patent

Battery pack and connecting circuits of battery modules

Life of this patent

Abstract

Claims14