Patent application number | Description | Published |
20080303340 | AUTOMOTIVE BRAKING SYSTEM WITH MASTER CYLINDER FORCE SIMULATOR - A brake-by-wire automotive braking system includes a master cylinder connected to a number of wheel cylinders, with the master cylinder being actuated by a brake pedal assembly operatively connected with a master cylinder force simulator simulating the resistive force/displacement characteristics of the master cylinder itself. An electronically controlled compliance device selectively immobilizes the master cylinder force simulator so that the resistive force provided by the simulator may be applied selectively to the brake pedal. This produces a transparency in the brake pedal's operational feel, notwithstanding the presence or absence of force provided by the master cylinder force simulator. | 12-11-2008 |
20100084915 | BRAKING SYSTEM FOR HYBRID VEHICLE - A braking system for a vehicle includes an active booster master cylinder connected with the wheel cylinders, and a controller for operating active booster master cylinder during braking. The primary master cylinder, which is located remotely from the active booster master cylinder, is selectably connected with either a pedal feel emulator or a servo system which applies the brakes using the active booster master cylinder and a hydraulic output from the primary master cylinder in the event that control of the active booster master cylinder becomes impaired. | 04-08-2010 |
20100114448 | REDUCED ENERGY VACUUM PUMP CONTROL - A method is provided that includes determining a state of a vehicle ignition switch; determining a state of the vehicle, wherein the vehicle state including at least one of whether the vehicle is in a torque producing mode, whether the vehicle is moving, and whether the vehicle brake system is engaged; and, controlling the vacuum pump in response to the vehicle state and the ignition switch state. | 05-06-2010 |
20110126663 | Vehicle Braking Assembly - The present disclosure relates to various vehicle braking assemblies. Brake pedal arms include, for example, a cam block that is configured to simplify the engagement between the power booster and pedal arm. Cam block can be movable with respect to the pedal arm to manage the gap between the pedal arm and power booster in by-wire braking assemblies. | 06-02-2011 |
20110126665 | Vehicle Braking Assembly with Gap Management System - The present disclosure relates to various vehicle braking assemblies with gap management devices to manage the distance between the pedal arm and power booster under predetermined conditions. | 06-02-2011 |
20110143320 | HEV BRAKE PEDAL SIMULATOR AIR GAP FILLER SYSTEM AND METHOD - A brake pedal simulator air gap filler system includes a brake pedal, a pedal feel simulator engaged by the brake pedal, a pedal push rod engaged by the brake pedal, a master cylinder/booster push rod spaced-apart from the pedal push rod, an air gap between the pedal push rod and the master cylinder/booster push rod, a master cylinder/booster engaged by the master cylinder/booster push rod and an air gap filling apparatus having an air gap filling head in adjacent proximity to the air gap and adapted to selectively engage and disengage the air gap. | 06-16-2011 |
20110166725 | CHARGE UTILIZATION CONTROL SYSTEM AND METHOD - A charge utilization control system for an electric vehicle includes a controller, an electric motor connected to the controller, a battery connected to the electric motor and an internal combustion engine connected to the controller. The controller is adapted to minimize electric charge stored in the battery as the electric vehicle approaches a charging destination for the battery. | 07-07-2011 |
20120237360 | Electric Vacuum Pump Backup Control System and Method - An electric vacuum pump backup control system includes a brake on/off switch, a primary electric vacuum pump control interfacing with the brake on/off switch, a secondary electric vacuum pump control interfacing with the brake on/off switch and the primary electric vacuum pump control and an electric vacuum pump interfacing with the primary electric vacuum pump control. | 09-20-2012 |
20130131946 | Reduced Energy Vacuum Pump Control - A method is provided that includes determining a state of a vehicle ignition switch; determining a state of the vehicle, wherein the vehicle state including at least one of whether the vehicle is in a torque producing mode, whether the vehicle is moving, and whether the vehicle brake system is engaged; and, controlling the vacuum pump in response to the vehicle state and the ignition switch state. | 05-23-2013 |
20130253745 | CHARGE UTILIZATION CONTROL SYSTEM AND METHOD - A charge utilization control system for an electric vehicle includes a controller, an electric motor connected to the controller, a battery connected to the electric motor and an internal combustion engine connected to the controller. The controller is adapted to minimize electric charge stored in the battery as the electric vehicle approaches a charging destination for the battery. | 09-26-2013 |
20140041470 | Vehicle Braking Assembly - The present disclosure relates to various vehicle braking assemblies. Brake pedal arms include, for example, a cam block that is configured to simplify the engagement between the power booster and pedal arm. Cam block can be movable with respect to the pedal arm to manage the gap between the pedal arm and power booster in by-wire braking assemblies. | 02-13-2014 |
20140265543 | CONTROL OF HYDRAULIC BRAKE SYSTEM AND METHOD - A hybrid or electric vehicle includes a hydraulic brake system having an active vacuum booster with an active boost control valve actuated by at least one controller. An isolation valve is disposed in a fluid circuit that fluidly connects a master cylinder to hydraulic brakes. A brake pedal is capable of moving in an initial deadband displacement range when initially depressed by an operator of the vehicle. While in the initial deadband displacement range, the controller selectively activates the isolation valve to inhibit fluid flow from at least a portion of the fluid circuit to the master cylinder based at least upon an operating state of the active boost control valve. | 09-18-2014 |
20150084758 | DRIVER PROMPTING BRAKING SYSTEM AND METHOD - A driver prompting braking system includes a detection device adapted to sense at least one object in front of the vehicle; a detection system interfacing with the detection device, the detection system adapted to detect the at least one object; and a brake coaching system interfacing with the detection system, the brake coaching system adapted to determine a brake application timing for an operator of the vehicle to avoid the object and optimize fuel economy of the vehicle. A driver prompting braking method is also disclosed. | 03-26-2015 |
20150088380 | ACTIVE TORQUE STEER COMPENSATION DURING NEGATIVE POWERTRAIN TORQUE FOR HYBRID AND ELECTRIC VEHICLES - A system and method for compensating for drive influences of a drive train of a vehicle, where the vehicle has a traction motor and a power steering system including a servomotor configured to provide torque to a vehicle steering rack, include commanding the servomotor to apply a compensation torque to the vehicle steering rack. The compensation torque is applied in response to a predicted drive influence caused by a regenerative braking torque. | 03-26-2015 |