Emergency starting device and emergency starting method

• US 10,174,736 B2
• Filed: 05/07/2015
• Issued: 01/08/2019
• Est. Priority Date: 04/10/2015
• Status: Active Grant

• Current Assignee: Zhang Lei
• Original Assignee: Zhang Lei
• Inventors: Zhang, Lei
• Primary Examiner(s): Berhanu, Samuel
• Application Number:
  US14/443,021
• Publication Number:
  US 20170191459A1
• Time in Patent Office: 1,342 Days
• Field of Search: 320105
• CPC Class Codes: F02N 11/0866 comprising several power sources, e.g. battery and capacitor or two batteries
• CPC Class Codes: F02N 11/087 Details of the switching means in starting circuits, e.g. relays or electronic switches
• CPC Class Codes: F02N 11/12 Starting of engines by means of mobile, e.g. portable, starting sets
• CPC Class Codes: F02N 11/14 Starting of engines by means of electric starters with external current supply F02N11/12 takes precedence
• CPC Class Codes: F02N 2011/0885 Capacitors, e.g. for additional power supply
• CPC Class Codes: F02N 2011/0888 DC/DC converters
• CPC Class Codes: F02N 2200/043 Starter voltage
• CPC Class Codes: F02N 2200/046 Energy or power necessary for starting
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034
• CPC Class Codes: H02J 7/345 using capacitors as storage or buffering devices

Abstract

The present invention provides an emergency starting device, including a first output end and a second output end, wherein the first output end is used for being connected to a positive electrode of an accumulator battery in an engine starting system and the second output end is used for being connected to a negative electrode of the accumulator battery; the device includes a super-capacitor, a controller and a DC-DC booster circuit, wherein the controller receives first electrical signal from the accumulator battery and electrically connects the super-capacitor and the accumulator battery to start the engine with energy stored in the super-capacitor when the first electrical signal changes suddenly, the DC-DC booster circuit increases the output voltage of the accumulator battery to charge the super-capacitor. The invention further provides an emergency starting method accordingly. By using the super-capacitor, the controller and the DC-DC booster circuit the invention fits in various severe environments and can start an engine in emergency permanently and effectively.

Claims

1. An emergency starting device, for use when an engine starting system cannot start an engine, comprising a first output end and a second output end, wherein the first output end is, in use, connected to a positive electrode of an accumulator battery in the engine starting system and the second output end is, in use, connected to a negative electrode of the accumulator battery, wherein the device includes a super-capacitor, a controller and a DC-DC booster circuit, wherein

the DC-DC booster circuit is arranged, in use, to be connected between the super-capacitor and the accumulator battery,

the DC-DC booster circuit is arranged to increase the output voltage of the accumulator battery to charge the super-capacitor;

the negative electrode of the accumulator battery is grounded;

the controller is arranged to receives a first electrical signal from the accumulator battery;

the first electrical signal being a voltage at the positive electrode of the accumulator battery;

wherein the controller is arranged to electrically connect the super-capacitor and the accumulator battery to start the engine with energy stored in the super-capacitor when the voltage decreases at a rate of no less than 2V/s;

wherein the emergency starting device further includes a normally open relay, via which one end of the super-capacitor is connected to the positive electrode of the accumulator battery, and the other end of the super-capacitor is grounded;

the controller closes the relay to electrically connect the super-capacitor and the accumulator battery when the first electrical signal changes suddenly;

wherein the controller further receives a second electrical signal from the super-capacitor and calculates the energy stored in the super-capacitor according to the second electrical signal from the super-capacitor;

the controller sends out an indicating signal when the energy is insufficient to start the engine.

3. The emergency starting device according to claim 1, wherein the second electrical signal is a voltage at a non-grounded end of the super-capacitor.

4. The emergency starting device according to claim 1, wherein the controller is equipped with a switch;

the controller functions when the switch is on, the controller does not function when the switch is off.

2. An emergency starting device, for use when an engine starting system cannot start an engine, comprising a first output end and a second output end, wherein the first output end is, in use, connected to a positive electrode of an accumulator battery in the engine starting system and the second output end is, in use, connected to a negative electrode of the accumulator battery, wherein the device includes a super-capacitor, a controller and a DC-DC booster circuit, wherein

the DC-DC booster circuit is arranged, in use, to be connected between the super-capacitor and the accumulator battery,

the DC-DC booster circuit is arranged to increase the output voltage of the accumulator battery to charge the super-capacitor;

the negative electrode of the accumulator battery is grounded;

the controller is arranged to receive a first electrical signal from the accumulator battery, the first electrical signal is a current at the positive electrode of the accumulator battery; and

the controller is arranged to electrically connects the super-capacitor and the accumulator battery to start the engine with energy stored in the super-capacitor when the current increases at a rate of no less than 20 A/s;

wherein the emergency starting device further includes a normally open relay, via which one end of the super-capacitor is connected to the positive electrode of the accumulator battery, and the other end of the super-capacitor is grounded;

the controller closes the relay to electrically connect the super-capacitor and the accumulator battery when the first electrical signal changes suddenly;

wherein the controller further receives a second electrical signal from the super-capacitor and calculates the energy stored in the super-capacitor according to the second electrical signal from the super-capacitor;

the controller sends out an indicating signal when the energy is insufficient to start the engine.

5. An emergency starting method, used when a starting system cannot start an engine, the method comprising:

using a super-capacitor, a DC-DC booster circuit is connected between the super-capacitor and an accumulator battery in the starting system to increase an output voltage of the accumulator battery to charge the super-capacitor, and a negative electrode of the accumulator battery is grounded;

using a controller, which receives a first electrical signal from the accumulator battery, wherein;

(I) the first electrical signal is a voltage at a positive electrode of the accumulator battery; and

the controller electrically connects the super-capacitor and the accumulator battery to start the engine with energy stored in the super-capacitor when the voltage decreases at a rate of no less than 2V/s;

or

(II) the first electrical signal is a current at the positive electrode of the accumulator battery; and

the controller electrically connects the super-capacitor and the accumulator battery to start the engine with energy stored in the super-capacitor when the current increases at a rate of no less than 20 A/s;

wherein the controller further receives a second electrical signal from the super-capacitor and calculates the energy stored in the super-capacitor according to the second electrical signal;

the controller electrically connects the super-capacitor to the accumulator battery via the DC-DC booster circuit when the energy is insufficient to start the engine, to have the super-capacitor charged by the output voltage of the accumulator battery increased by DC-DC booster circuit.

6. The emergency starting method according to claim 5, wherein the second electrical signal is a voltage at a non-grounded end of the super-capacitor.

7. The emergency starting method according to claim 6, wherein the controller is equipped with a switch;

the controller functions when the switch is on, the controller does not function when the switch is off.