A vehicle control device, a vehicle control method, and a vehicle control system according to one embodiment of the present invention are configured to acquire a physical quantity relating to a speed of a vehicle and a physical quantity relating to a requested braking force required to decelerate the vehicle and to generate a driving force by a driving device under a state in which a friction braking force is being generated when the vehicle is to be decelerated based on the physical quantity relating to the requested braking force.

According some aspects, an automated bicycle emergency braking system may be retrofitted to a commercial pedestrian bicycle to provide emergency braking functionality. Aspects described therein detail a light-weight and consumer affordable automated bicycle emergency braking system for improving pedestrian bicycle safety. Aspects described therein relate to sensing of a bicycle's surroundings for potentially hazardous objects, identifying a potentially hazardous road condition, determining whether to engage a bicycle's mechanical braking system, determining how long to engage a bicycle's mechanical braking system, and disengaging a bicycle's mechanical braking system until determining confirmation of resolution of the pedestrian bicyclist's safety regarding the identified potentially hazardous road condition.

Described are devices, systems and methods for managing a supplemental brake control system in autonomous vehicles. In some aspects, a supplemental brake management system includes brake control hardware and software that operates with a sensing mechanism for determining the brake operational status and a control mechanism for activating the supplemental brake control in an autonomous vehicle, which can be implemented in addition to the vehicle's primary brake control system.

Methods and systems for operating a vehicle on a reduced traction surface are disclosed. A controller of the vehicle obtains at least one of: ambient information or GPS information, determines a derate increment size based on the ambient or GPS information, imposes a sustained derate by applying a torque limit on a braking torque of the vehicle based on the derate increment size in response to detecting a traction control event. The controller also determines a verification period and a derate reduction period based on the ambient or GPS information to reduce the sustained derate in response to detecting a lack of traction control event during the verification period at a rate determined by the derate reduction period.

Disclosed is a maximum communication delay measurement method for safe braking of a smart connected vehicle; the measurement method is: first performing parameter initialization, the parameters for initialization comprising vehicle braking parameters, kinematic/kinetic parameters, and communication parameters; then generating a braking force function of the vehicle, taking the minimum distance between vehicles as the objective, and solving for the maximum allowable communication delay between vehicles on the basis of the proposed evaluation method.

A method for emergency engagement of a holding brake of a vehicle having an electropneumatic brake system. The electropneumatic brake system includes a service brake system with a service brake and a holding brake system with the holding brake. The holding brake system has spring brake cylinders. The service brake system includes a service brake control unit. The electropneumatic braking system includes at least one brake circuit for the service brake and the holding brake. The service and holding brakes may be in separate brake circuits. The spring brake cylinders can be vented when a supply pressure in at least one brake circuit for the service brake decreases. The method includes reducing, via the service brake control unit, the supply pressure in at least one brake circuit for the service brake under a program control in defined conditions.

A brake control apparatus for construction machinery, includes first and second brake lines through which a brake oil is supplied to a front brake device and a rear brake device of the construction machinery, first and second proportional flow control valves installed respectively in the first and second brake lines to control a flow rate of the brake oil in proportion to inputted first and second brake control signals, a sensing portion configured to detect work and travel information of the construction machinery, and a controller configured to output the first and second brake control signals in response to a brake manipulation signal of a driver, and configured to control independently the first and second proportional flow control valves based on the work and travel information of the construction machinery detected by the sensing portion.

Embodiments of the present disclosure relate to assisted driving of a vehicle. The response time of the driver may be measured and control operations may be adjusted to accommodate or compensate the response time of the driver. Predictive actions in anticipation of a slightly delayed input from the driver may be taken to avoid potentially dangerous conditions. A vehicle may be controlled to slow down to allow more time to a potential event to accommodate a slow response from the driver.

The present application discloses a braking method, a vehicle and a medium, wherein the vehicle comprises a primary braking system, a parking brake, an auxiliary high-pressure gas tank, and a retarder, and the braking method comprises: determining whether a current air pressure value of the auxiliary high-pressure gas tank reaches a preset air pressure value; controlling, in response to the current air pressure value not reaching the preset air pressure value, the auxiliary high-pressure gas tank to carry out air pressure loading; and controlling, in response to failure of the primary braking system and the current air pressure value reaching the preset air pressure value, a first braking torque of the parking brake and a second braking torque of the retarder according to a deceleration signal of the vehicle so as to control the vehicle to brake.

The techniques and systems herein enable estimated-acceleration determination for AEB. Specifically, for a potential collision, a determination is made as to whether the target of the potential collision is likely to be stopped prior to the potential collision (e.g., due to its own braking). One of a plurality of estimated-acceleration functions is then selected based on whether the target is likely to be stopped prior to the potential collision. Using the selected estimated-acceleration function, an estimated acceleration to avoid the potential collision is calculated. By selecting different estimated-acceleration functions based on whether targets are likely to be stopped prior to potential collisions, more-accurate estimated accelerations may be generated, thus enabling better collision avoidance and/or avoiding unnecessarily strong braking.