US5343971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric vehicle with individually controlled drive electromotors
Assignee: L3 Magnet Motor GmbH
•
Filing: 1991-04-05
•
Granted: 1994-09-06
•
Expires: 2011-04-05
Abstract
Abstract A non-rail bound vehicle comprising at least two drive electromotors (8), the one thereof being provided for driving a driving wheel (12) on the left side of the vehicle and the other one thereof being provided for driving a driving wheel (12) on the fight side of the vehicle, characterized in that each of the two electromotors (8) has its own motor control (30) associated therewith for presetting the instantaneous nominal power and/or the instantaneous nominal speed of the respective electromotor (8); and that a superior central control (28) connected to the central controls (30) is provided which controls the two electromotors (8) via the motor controls (30) so as to prevent drive slip and/or brake locking and/or to provide a fight/left drive differential that is favourable in terms of movement dynamics, with the central control (28) and/or the motor controls (30) taking into account information on the instantaneous actual electrical power and/or the instantaneous actual speed of the two electromotors (8).
Inventors
- 👤 Gotz Heidelberg
- 👤 Andreas Grundl
- 👤 Peter Ehrhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:44
CPC Classifications
B; B60; B60W; B60W10/00; B60W10/04; B60W10/08; B60K; B60K17/00; B60K17/34; B60K17/356; B60K6/00; B60K6/20; B60K6/42; B60K6/46; B60K6/50; B60K6/52; B60L; B60L15/00; B60L15/20; B60L15/2036; B60L3/00; B60L3/10; B60L3/106; B60L3/108; B60L50/00; B60L50/10; B60L50/13; B60L50/50; B60L50/60; B60L50/61; B60L50/62; B60L7/00; B60L7/02; B60L7/06; B60L7/10; B60L7/14; B60L7/22; B60K5/00; B60K5/04; B60L2210/00; B60L2210/10; B60L2210/12; B60L2210/30; B60L2210/40; B60L2220/00; B60L2220/40; B60L2220/46; B60L2240/00; B60L2240/10; B60L2240/12; B60L2240/40; B60L2240/42; B60L2240/421; B60L2240/423; B60L2240/425; B60L2240/44; B60L2240/441; B60L2240/46; B60L2240/465; B60L2260/00; B60L2260/20; B60L2260/28; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/64; Y02T10/70; Y02T10/7072; Y02T10/72; Y10; Y10S; Y10S903/00; Y10S903/902; Y10S903/903; Y10S903/904; Y10S903/915; Y10S903/916
Claims Analysis
Total Claims: 50
Claim 1
Independent Claim
151 words
A non-rail bound vehicle comprising: (a) at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle; (b) each of the at least two electromotors has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the respective electromotor; (c) a superior central controller which is connected to the motor controllers and controls the at least two electromotors via the motor controllers to prevent drive slip; (d) with at least one of the superior central controller and the motor controllers obtaining and utilizing information on: the instantaneous actual electrical power, of the at least two electromotors the instantaneous actual speed of the at least two electromotors, and the instantaneous actual torque of the at least two electromotors.
Claim 2
Dependent Claim
151 words
A non-rail bound vehicle comprising: (a) at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle; (b) each of the at least two electromotors has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the respective electromotor; (c) a superior central controller which is connected to the motor controllers and controls the at least two electromotors via the motor controllers to prevent drive slip; (d) with at least one of the superior central controller and the motor controllers obtaining and utilizing information on: the instantaneous actual electrical power, of the at least two electromotors the instantaneous actual speed of the at least two electromotors, and the instantaneous actual torque of the at least two electromotors.
Claim 3
Dependent Claim
24 words
A vehicle according to claim 1, further comprising an internal combustion engine and at least one current generator drivable by the internal combustion engine.
Claim 4
Dependent Claim
19 words
A vehicle according to claim 2, wherein the generator is operable as a starter for the internal combustion engine.
Claim 5
Dependent Claim
35 words
A vehicle according to claim 2, wherein at least one of the at least two electromotors and the generator is a machine excited by permanent magnets, with the permanent magnets being highly coercive permanent magnets.
Claim 6
Dependent Claim
37 words
A vehicle according to claim 1, further comprising a steering angle sensor, wherein the central controller is responsive to a steering angle of the vehicle detected by the steering angle sensor, for generating a right/left drive differential.
Claim 7
Dependent Claim
27 words
A vehicle according to claim 1, wherein the central controller is responsive to rotation of the vehicle about its vertical axis for generating a right/left drive differential.
Claim 8
Dependent Claim
34 words
A vehicle according to claim 1, wherein the at least two electromotors are switchable to generator operation for braking the vehicle, and wherein at least one braking resistor is provided for dissipating braking energy.
Claim 9
Dependent Claim
151 words
A non-rail bound vehicle comprising: (a) at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle; (b) each of the at least two electromotors has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the respective electromotor; (c) a superior central controller which is connected to the motor controllers and controls the at least two electromotors via the motor controllers to prevent brake locking; (d) with at least one of the superior central controller and the motor controllers obtaining and utilizing information on: the instantaneous actual electrical power, of the at least two electromotors the instantaneous actual speed of the at least two electromotors, and the instantaneous actual torque of the at least two electromotors.
Claim 10
Dependent Claim
151 words
A non-rail bound vehicle comprising: (a) at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle; (b) each of the at least two electromotors has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the respective electromotor; (c) a superior central controller which is connected to the motor controllers and controls the at least two electromotors via the motor controllers to prevent brake locking; (d) with at least one of the superior central controller and the motor controllers obtaining and utilizing information on: the instantaneous actual electrical power, of the at least two electromotors the instantaneous actual speed of the at least two electromotors, and the instantaneous actual torque of the at least two electromotors.
Claim 11
Dependent Claim
24 words
A vehicle according to claim 8, further comprising an internal combustion engine and at least one current generator drivable by the internal combustion engine.
Claim 12
Dependent Claim
19 words
A vehicle according to claim 9, wherein the generator is operable as a starter for the internal combustion engine.
Claim 13
Dependent Claim
35 words
A vehicle according to claim 9, wherein at least one of the at least two electromotors and the generator is a machine excited by permanent magnets, with the permanent magnets being highly coercive permanent magnets.
Claim 14
Dependent Claim
37 words
A vehicle according to claim 8, further comprising a steering angle sensor, wherein the central controller is responsive to a steering angle of the vehicle detected by the steering angle sensor, for generating a right/left drive differential.
Claim 15
Dependent Claim
27 words
A vehicle according to claim 8, wherein the central controller is responsive to rotation of the vehicle about its vertical axis for generating a right/left drive differential.
Claim 16
Dependent Claim
34 words
A vehicle according to claim 8, wherein the at least two electromotors are switchable to generator operation for braking the vehicle, and wherein at least one braking resistor is provided for dissipating braking energy.
Claim 17
Dependent Claim
160 words
A non-rail bound vehicle comprising: (a) at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle; (b) each of the at least two electromotors has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the respective electromotor; (c) a superior central controller which is connected to the motor controllers and controls the at least two electromotors via the motor controllers to provide a right/left drive differential that is favorable in terms of movement dynamics; (d) with at least one of the superior central controller and the motor controllers obtaining and utilizing information on: the instantaneous actual electrical power, of the at least two electromotors the instantaneous actual speed of the at least two electromotors, and the instantaneous actual torque of the at least two
Claim 18
Dependent Claim
160 words
A non-rail bound vehicle comprising: (a) at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle; (b) each of the at least two electromotors has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the respective electromotor; (c) a superior central controller which is connected to the motor controllers and controls the at least two electromotors via the motor controllers to provide a right/left drive differential that is favorable in terms of movement dynamics; (d) with at least one of the superior central controller and the motor controllers obtaining and utilizing information on: the instantaneous actual electrical power, of the at least two electromotors the instantaneous actual speed of the at least two electromotors, and the instantaneous actual torque of the at least two
Claim 19
Dependent Claim
24 words
A vehicle according to claim 15, further comprising an internal combustion engine and at least one current generator drivable by the internal combustion engine.
Claim 20
Dependent Claim
19 words
A vehicle according to claim 16, wherein the generator is operable as a starter for the internal combustion engine.
Claim 21
Dependent Claim
35 words
A vehicle according to claim 16, wherein at least one of the at least two electromotors and the generator is a machine excited by permanent magnets, with the permanent magnets being highly coercive permanent magnets.
Claim 22
Dependent Claim
37 words
A vehicle according to claim 15, further comprising a steering angle sensor, wherein the central controller is responsive to a steering angle of the vehicle detected by the steering angle sensor, for generating a right/left drive differential.
Claim 23
Dependent Claim
27 words
A vehicle according to claim 15, wherein the central controller is responsive to rotation of the vehicle about its vertical axis for generating a right/left drive differential.
Claim 24
Dependent Claim
34 words
A vehicle according to claim 15, wherein the at least two electromotors are switchable to generator operation for braking the vehicle, and wherein at least one braking resistor is provided for dissipating braking energy.
Claim 25
Dependent Claim
157 words
A non-rail bound vehicle comprising: (a) at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle; (b) each of the at least two electromotors has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the respective electromotor; (c) a superior central controller which is connected to the motor controllers and controls the at least two electromotors via the motor controllers to provide a favorable power transmission of the driving wheels; (d) with at least one of the superior central controller and the motor controllers obtaining and utilizing information on: the instantaneous actual electrical power, of the at least two electromotors the instantaneous actual speed of the at least two electromotors, and the instantaneous actual torque of the at least two electromotors.
Claim 26
Dependent Claim
157 words
A non-rail bound vehicle comprising: (a) at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle; (b) each of the at least two electromotors has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the respective electromotor; (c) a superior central controller which is connected to the motor controllers and controls the at least two electromotors via the motor controllers to provide a favorable power transmission of the driving wheels; (d) with at least one of the superior central controller and the motor controllers obtaining and utilizing information on: the instantaneous actual electrical power, of the at least two electromotors the instantaneous actual speed of the at least two electromotors, and the instantaneous actual torque of the at least two electromotors.
Claim 27
Dependent Claim
24 words
A vehicle according to claim 22, further comprising an internal combustion engine and at least one current generator drivable by the internal combustion engine.
Claim 28
Dependent Claim
19 words
A vehicle according to claim 23, wherein the generator is operable as a starter for the internal combustion engine.
Claim 29
Dependent Claim
35 words
A vehicle according to claim 23, wherein at least one of the at least two electromotors and the generator is a machine excited by permanent magnets, with the permanent magnets being highly coercive permanent magnets.
Claim 30
Dependent Claim
37 words
A vehicle according to claim 22, further comprising a steering angle sensor, wherein the central controller is responsive to a steering angle of the vehicle detected by the steering angle sensor, for generating a right/left drive differential.
Claim 31
Dependent Claim
27 words
A vehicle according to claim 22, wherein the central controller is responsive to rotation of the vehicle about its vertical axis for generating a right/left drive differential.
Claim 32
Dependent Claim
34 words
A vehicle according to claim 22, wherein the at least two electromotors are switchable to generator operation for braking the vehicle, and wherein at least one braking resistor is provided for dissipating braking energy.
Claim 33
Dependent Claim
121 words
A non-rail bound vehicle comprising: (a) at least one drive electromotor; (b) an internal combustion engine and a current generator adapted to be driven by the internal combustion engine; (c) the at least one electromotor has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the at least one electromotor; (d) the internal combustion engine/generator group has a current generating controller associated therewith; and (e) a central controller which is connected to the respective motor controller of the at least one electromotor and to the current generating controller and which, based on the electrical power requirements of the at least one electromotor, controls the internal combustion engine via the current generating controller to achieve low fuel consumption.
Claim 34
Dependent Claim
121 words
A non-rail bound vehicle comprising: (a) at least one drive electromotor; (b) an internal combustion engine and a current generator adapted to be driven by the internal combustion engine; (c) the at least one electromotor has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the at least one electromotor; (d) the internal combustion engine/generator group has a current generating controller associated therewith; and (e) a central controller which is connected to the respective motor controller of the at least one electromotor and to the current generating controller and which, based on the electrical power requirements of the at least one electromotor, controls the internal combustion engine via the current generating controller to achieve low fuel consumption.
Claim 35
Dependent Claim
96 words
A vehicle according to claim 25, wherein the at least one drive electromotor comprises at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle, each of the at least two electromotors having a respective motor controller associated therewith, and the central controller controls the internal combustion engine via the current generating controller based on the electrical power requirements of the at least two electromotors.
Claim 36
Dependent Claim
19 words
A vehicle according to claim 25, wherein the generator is operable as a starter for the internal combustion engine.
Claim 37
Dependent Claim
34 words
A vehicle according to claim 25, wherein the at least one electromotor is switchable to generator operation for braking the vehicle, and wherein at least one braking resistor is provided for dissipating braking energy.
Claim 38
Dependent Claim
35 words
A vehicle according to claim 29, wherein at least one of the at least one electromotor and the generator is a machine excited by permanent magnets, with the permanent magnets being highly coercive permanent magnets.
Claim 39
Dependent Claim
121 words
A non-rail bound vehicle comprising: (a) at least one drive electromotor; (b) an internal combustion engine and a current generator adapted to be driven by the internal combustion engine; (c) the at least one electromotor has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the at least one electromotor; (d) the internal combustion engine/generator group has a current generating controller associated therewith; and (e) a central controller which is connected to the respective motor controller of the at least one electromotor and to the current generating controller and which, based on the electrical power requirements of the at least one electromotor, controls the internal combustion engine via the current generating controller to achieve low pollutant emissions.
Claim 40
Dependent Claim
121 words
A non-rail bound vehicle comprising: (a) at least one drive electromotor; (b) an internal combustion engine and a current generator adapted to be driven by the internal combustion engine; (c) the at least one electromotor has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the at least one electromotor; (d) the internal combustion engine/generator group has a current generating controller associated therewith; and (e) a central controller which is connected to the respective motor controller of the at least one electromotor and to the current generating controller and which, based on the electrical power requirements of the at least one electromotor, controls the internal combustion engine via the current generating controller to achieve low pollutant emissions.
Claim 41
Dependent Claim
96 words
A vehicle according to claim 34, wherein the at least one drive electromotor comprises at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle, each of the at least two electromotors having a respective motor controller associated therewith, and the central controller controls the internal combustion engine via the current generating controller based on the electrical power requirements of the at least two electromotors.
Claim 42
Dependent Claim
19 words
A vehicle according to claim 34, wherein the generator is operable as a starter for the internal combustion engine.
Claim 43
Dependent Claim
34 words
A vehicle according to claim 34, wherein the at least one electromotor is switchable to generator operation for braking the vehicle, and wherein at least one braking resistor is provided for dissipating braking energy.
Claim 44
Dependent Claim
35 words
A vehicle according to claim 34, wherein at least one of the at least one electromotor and the generator is a machine excited by permanent magnets, with the permanent magnets being highly coercive permanent magnets.
Claim 45
Dependent Claim
121 words
A non-rail bound vehicle comprising: (a) at least one drive electromotor; (b) an internal combustion engine and a current generator adapted to be driven by the internal combustion engine; (c) the at least one electromotor has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the at least one electromotor; (d) the internal combustion engine/generator group has a current generating controller associated therewith; and (e) a central controller which is connected to the respective motor controller of the at least one electromotor and to the current generating controller and which, based on the electrical power requirements of the at least one electromotor, controls the internal combustion engine via the current generating controller to achieve high power output.
Claim 46
Dependent Claim
121 words
A non-rail bound vehicle comprising: (a) at least one drive electromotor; (b) an internal combustion engine and a current generator adapted to be driven by the internal combustion engine; (c) the at least one electromotor has a respective motor controller associated therewith for presetting an instantaneous nominal torque of the at least one electromotor; (d) the internal combustion engine/generator group has a current generating controller associated therewith; and (e) a central controller which is connected to the respective motor controller of the at least one electromotor and to the current generating controller and which, based on the electrical power requirements of the at least one electromotor, controls the internal combustion engine via the current generating controller to achieve high power output.
Claim 47
Dependent Claim
96 words
A vehicle according to claim 35, wherein the at least one drive electromotor comprises at least two drive electromotors, a first one thereof being provided for driving a driving wheel on the left side of the vehicle and a second one thereof being provided for driving a driving wheel on the right side of the vehicle, each of the at least two electromotors having a respective motor controller associated therewith, and the central controller controls the internal combustion engine via the current generating controller based on the electrical power requirements of the at least two electromotors.
Claim 48
Dependent Claim
19 words
A vehicle according to claim 39, wherein the generator is operable as a starter for the internal combustion engine.
Claim 49
Dependent Claim
34 words
A vehicle according to claim 39, wherein the at least one electromotor is switchable to generator operation for braking the vehicle, and wherein at least one braking resistor is provided for dissipating braking energy.
Claim 50
Dependent Claim
35 words
A vehicle according to claim 39, wherein at least one of the at least one electromotor and the generator is a machine excited by permanent magnets, with the permanent magnets being highly coercive permanent magnets.
References Cited (Backward Citations)
CH484765A
Cited
DE2621374A1
Cited
US4363999A
Cited
EP0046997A2
Cited
US4495451A
Cited
US4471273A
Cited
GB2135478A
Cited
US4951769A
Cited
FR2592342A1
Cited
US4953646A
Cited
DE3725620A1
Cited
WO1990011905A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-09-05 | 1998-03-07 | 1998-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-05 | 2002-03-07 | 2002-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-05 | 2006-03-07 | 2006-09-06 | $7700.00 | Window Closed / Lapsed |