VEHICLE WITH CONTROL OF ELEMENTS WITH NEGATIVE TORQUE FOR THE REGULATION OF ITS OWN DYNAMICS

• US 20090281693A1
• Filed: 03/19/2007
• Published: 11/12/2009
• Est. Priority Date: 03/27/2006
• Status: Active Grant

• Current Assignee: Peugeot Citroen Automobiles SA (Stellantis NV)
• Original Assignee: Peugeot Citroen Automobiles SA (Stellantis NV)
• Inventors: Lecointre, Bruno, Lannelongue, Emmanuel
• Granted Patent: US 8,131,430 B2
• Time in Patent Office: Days
• US Class Current: 701/48
• CPC Class Codes: B60K 25/02 directly from an engine shaft
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60L 15/2009 for braking
• CPC Class Codes: B60L 15/2018 for braking on a slope
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2240/443 Torque
• CPC Class Codes: B60L 2240/486 Operating parameters
• CPC Class Codes: B60L 7/26 Controlling the braking effect
• CPC Class Codes: B60T 1/10 by utilising wheel movement for accumulating energy, e.g. driving air compressors
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: B60W 10/184 with wheel brakes
• CPC Class Codes: B60W 10/30 including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/10 Controlling the power contribution of each of the prime movers to meet required power demand
• CPC Class Codes: B60W 2540/12 Brake pedal position
• CPC Class Codes: B60W 2710/105 Output torque
• CPC Class Codes: B60W 30/18109 Braking
• CPC Class Codes: B60W 30/18127 Regenerative braking
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y02T 10/92 : Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

Abstract

The invention relates to a vehicle comprising a device for controlling negative torque comprises: a central control unit (46); an internal combustion engine (4); a device (16) for braking the wheels; an input (48) for a resistive torque; at least one element with negative torque (generator (24), alternator (26), air conditioning compressor (28), lighting (30)); and at least one device for regulating the or each element. The central control unit comprises means for controlling the or each regulating device in order to meet the resistive torque demand.

Claims

1. Motor vehicle with wheels, intended to control a longitudinal dynamics, speed in particular, comprising:

a control unit;

an internal combustion engine;

an input for requesting a resistive torque;

a braking device for the wheels carried on a wheel shaft;

at least one member with negative torque, external to the engine and the braking device for the wheels, that is capable of increasing the resistive torque of the engine by acting on the engine;

at least one control device, associated with the or each member with negative torque, that makes it possible to activate the coupling between the or each negative coupling member and the engine so that the engine drives the negative torque member,

wherein the control unit comprises control means for the or each control device for the or each negative torque member actuated in response to said input for requesting a resistive torque.

2. Motor vehicle according to claim 1, which comprises at least two members with negative torque, external to the engine and the braking device for the wheels, capable of increasing the resistive torque of the engine (4), and wherein the at least two negative torque members can be actuated in response to said input (48) for requesting a resistive torque.

3. Motor vehicle according to claim 1, wherein the or each negative torque member is a member selected from the group consisting of a controlled alternator, a load coupled to an alternator, an air conditioning compressor, a fan, a member directly linked to a drive train, and a kinetic energy recovery device.

4. Motor vehicle according to claim 1, wherein the control unit comprises a negative torque signal allocation unit capable of:

receiving said input for requesting a resistive torque; and

determining an allocation of signals for negative torque to be supplied by the negative torque members in response to said input and conditions of the negative torque members.

5. Motor vehicle according to claim 4, wherein the allocation unit for the negative torque resources is additionally capable of:

receiving as input an authorization to activate the negative torque members;

receiving at an input remote measurements of the condition parameters of the or each negative torque member; and

receiving at an input (54) remote measurements of the condition parameters of the vehicle, other than the condition parameters of the negative torque members.

6. Motor vehicle according to claim 4, wherein the control unit is capable of converting the allocated signals for negative torques to be supplied by the negative torque members into local signals that can be processed directly and respectively by the control devices for the negative torque members, using a respective local format.

7. Motor vehicle according to claim 5, wherein the local signals are digital or analog magnitudes.

8. Motor vehicle according to claim 6, which comprises at least one local measuring device associated with the or each negative torque member, respectively, that is capable of:

measuring the negative torque actually applied by the associated negative torque member; and

sending to the control unit a local measurement using the same local format for the local signal associated with the negative torque member, and

wherein the control unit is capable of receiving the local measurement, comparing it to the local signal, and formulating a local command in the local format to send to the control device associated with the negative torque member.