# US 11,110,873 B2 · Battery eliminator circuit apparatus, system, and method for a model vehicle

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- Number: US 11,110,873 B2
- Document ID: US11110873B2
- Status: Granted
- Kind: B2
- Application number: 16/459,410
- Filed: 2019-07-01
- Published: 2020-06-18
- Granted: 2021-09-07
- Earliest claimed: 2018-06-29
- Assignees: Traxxas, L.P.
- Applicants: Traxxas LP
- Inventors: Otto Karl Allmendinger; Scott Rollin Schmitz; Jonathan Scott Wood; William Huang
- Web page: https://patentgrep.com/patent/US11110873B2

## CPC

- B60R 16/033: characterised by the use of electrical cells or batteries (for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36)
- H04B 1/1607: {Supply circuits (converters H02M; filters therefor H02M1/14; voltage stabilisers G05F1/46)}
- B60L 1/003: {to auxiliary motors, e.g. for pumps, compressors}
- B60L 58/14: Preventing excessive discharging
- G05D 1/0011: {associated with a remote control arrangement}
- H04B 1/082: {to be used in vehicles (H04B1/086 takes precedence; holding or mounting accessories B60R11/02)}
- H04B 1/3822: specially adapted for use in vehicles (H04B1/3827 takes precedence)
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 90/16: Information or communication technologies improving the operation of electric vehicles
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- H04B: TRANSMISSION
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An auxiliary Battery Eliminator Circuit (BEC) and method are provided. The auxiliary BEC may include a receiver plug-in port with a low voltage power and ground connection and a receiver communication connection and an electronic speed control plug-in port comprising a low voltage power and ground connection and an electronic speed control communication connection. In addition the auxiliary BEC may include a battery pre-wire connection for electrically coupling to a high voltage positive terminal of a high voltage battery. Wherein the auxiliary BEC passes through communication signals between a receiver and the electronic speed control via the receiver communication connection and the electronic speed control communication connection. Wherein the auxiliary BEC provides converted high voltage power from the high voltage battery for the receiver and herein the auxiliary BEC powers on and off corresponding to input from the low voltage power and ground connection of the electronic speed control.

## Claims

### Claim 1

A radio-controlled vehicle comprising:
a receiver plug-in port comprising a low voltage power and ground connection and a receiver communication connection;
an auxiliary battery eliminator circuit electrically coupled to both an electronic speed control plug-in port comprising a low voltage power and ground connection and an electronic speed control communication connection;
wherein the electronic speed control further comprises a battery pre-wire connection for electrically coupling the auxiliary battery eliminator circuit to a high voltage positive terminal of a high voltage battery;
wherein the auxiliary battery eliminator circuit passes communication signals between the receiver and the electronic speed control via the receiver communication connection and the electronic speed control communication connection;
wherein the auxiliary battery eliminator circuit provides converted high voltage power from the high voltage battery for the receiver; and
wherein the auxiliary battery eliminator circuit powers on and off corresponding to input from the low voltage power connection and the ground connection of the electronic speed control.

### Claim 2 (depends on 1)

The radio-controlled vehicle according to claim 1, wherein the auxiliary battery eliminator circuit powers on after registering a voltage across the low voltage power and the ground connection of the receiver plug-in port.

### Claim 3 (depends on 1)

The radio-controlled vehicle circuit according to claim 1, wherein the auxiliary battery eliminator circuit powers off after registering a substantially zero voltage across the low voltage power connection and the ground connection of the electronic speed control plug-in port.

### Claim 4 (depends on 1)

The radio-controlled vehicle according to claim 1, wherein the auxiliary battery eliminator circuit powers on after registering a current flowing through the low voltage power connection and the ground connection of the electronic speed control plug-in port.

### Claim 5 (depends on 1)

The radio-controlled vehicle according to claim 1, wherein the battery pre-wire connection is a separate electrical output from the electronic speed control.

### Claim 6 (depends on 1)

The radio-controlled vehicle circuit according to claim 1, wherein the auxiliary battery eliminator circuit is integrated with the receiver.

### Claim 7

A method for adding an auxiliary battery eliminator circuit comprising:
electrically coupling the auxiliary battery eliminator circuit to both
an electronic speed control and a receiver;
electrically coupling a B(+) terminal and a B(−) terminal from a battery to the electronic speed control;
electrically coupling the auxiliary battery eliminator circuit to the B(+) terminal and the B(−) terminal via the electronic speed control;
wherein the auxiliary battery eliminator circuit passes communication signals between the receiver and the electronic speed control via a pulse width modulation connection to both the receiver and the electronic speed control;
wherein the auxiliary battery eliminator circuit powers on and off corresponding to input from an internal battery eliminator circuit of the electronic speed control; and
wherein the auxiliary battery eliminator circuit provides low voltage power to the receiver via the low voltage power connection and the ground connection of the electronic speed control.

### Claim 8 (depends on 7)

The method of claim 7, wherein, the B(+) terminal is electrically coupled to the auxiliary battery eliminator circuit via a battery pre-wire connection from the electronic speed control.

### Claim 9 (depends on 7)

The method of claim 7, wherein the communication between the receiver and the electronic speed control is pulse width modulation communication.