2776results about "Tyre measurements" patented technology

The invention relates to a pneumatic vehicle tire comprising a tread with profile positives delimited by grooves, including profile positives which are provided with sipes, which in plan view run at least in certain portions at an angle of 0° to 50° to the axial direction and have a width of 0.4 mm to 1.6 mm and a depth at the deepest point that is at least the profile depth reduced by 4.5 mm and at most 100% of the profile depth, with the sipes in each case being involved in forming at least one wear indicator. The wear indicator is formed by a sipe portion of the sipe which in plan view has the form of a sun symbol or a snowflake symbol.

The invention discloses a tire wear diagnosis method, device and equipment and a storage medium, and the method comprises the steps: generating a tire wear calculation model based on obtained key factors affecting tire wear, wherein the key factors comprise vehicle driving mileage, historical driving road condition information, driving habits, vehicle tire pressure and four-wheel positioning information; and calculating a current tire wear coefficient according to the tire wear calculation model, and diagnosing tire wear by using the current tire wear coefficient. The abnormal condition of tire wear can be effectively identified, a terminal client is reminded of the tire wear state of the vehicle, and the use safety of the vehicle tire is ensured.

Embodiments relates to systems and methods to calculate a tire pressure scheme to be utilized by a tire of a vehicle during a trip, communicate a command to the tire pressure control apparatus, to adjust tire pressure of a tire based on the tire pressure scheme, detect a problem encountered in adjusting the tire pressure of the tire based on the tire pressure scheme, generate an alert regarding the problem via a driver assistance interface, and recommend an action to be taken to mitigate the problem.

Embodiments relates to systems and methods to calculate a tire pressure scheme to be utilized by a tire of a vehicle during a trip, communicate a command to the tire pressure control apparatus, to adjust tire pressure of a tire based on the tire pressure scheme, detect a problem encountered in adjusting the tire pressure of the tire based on the tire pressure scheme, generate an alert regarding the problem via a driver assistance interface, and recommend an action to be taken to mitigate the problem.

The invention relates to a tire pressure monitoring method and system, a storage medium and a vehicle, and belongs to the technical field of tire pressure monitoring. Performing image processing on the tire grounding state image to obtain a grounding contour, and fitting the grounding contour into an ellipse to obtain long axis and short axis parameters of the ellipse; calculating a deformation ratio based on long-axis and short-axis parameters of the ellipse; calculating the current tire pressure through a pre-constructed tire pressure calculation model based on the deformation ratio; and judging whether the slow air leakage phenomenon exists in the tire according to the current tire pressure and the standard tire pressure. According to the method, the tire grounding state image can be obtained in real time without adding extra hardware, the cost is reduced by analyzing the tire deformation and judging the current tire pressure state, the influence of low temperature is considered, the slow air leakage condition can be detected, and the monitoring precision is improved.

The invention relates to the technical field of tire pressure monitoring, in particular to an indirect tire pressure monitoring method and device, a vehicle and a storage medium. The method includes: judging whether a vehicle is in a no-load state based on current mass of the vehicle; if the vehicle is in a no-load state, entering a no-load supervision mode based on a preset no-load correction coefficient and a preset standard frequency, and calculating a standard pulse number of each tire in the mode according to the preset no-load correction coefficient, a gear ratio of the wheel speed sensors of the first front and rear wheel sets and an actual pulse number of each tire; calculating the relative rolling radius characteristic of each tire according to the standard pulse number of each tire; and the relative rolling radius characteristic of each tire is compared with a first preset threshold value, and under the condition that the relative rolling radius characteristic of any tire is larger than the first preset threshold value, it is judged that the corresponding tire of the vehicle is in an underpressure state. Therefore, the problems of missing report and false report in the existing monitoring technology are solved, and the tire pressure monitoring accuracy is improved.

Instantaneous Tire Traction Modulating Valves [ITTMV] is a wheels internal and external highly time-sensitive application specific fail-safe electro-pneumatic valve design, valve's current-profile and regulator technique that proactively sense and instantaneously modulate the tire pressure between tire's upper and lower cut-off pressure valves from present / recommended values particularly during imminent / inevitable critical driving situations to mitigating-aquaplaning / hydroplaning, loss of stability / control, over / under steering, loss-of-traction, minimise-emergency / high speed braking distance, roll-over and loss of control due to puncture; by real-time sensing, perform context-aware computing and directing Tyre Pressure Modulating Units [TPMU] to actively modulate the tyre pressure in right time with right pressure on right tyres thereby instantly optimizing footprint / sidewall deformation rate to enhance tire traction simultaneously sustaining stability / steer-ability and restore / optimize to pre-set tyre pressure value immediately after overcoming critical situation for further safe and comfortable driving. Wheel hub housing integrated with rotary-link comprising electrically-insulated conductive-fluidic containers to transfer ITTMV's operational power and control-signal / data to wheels.

Embodiments relate to systems and methods for determining a first tire pressure scheme prior to a trip based on tire pressure affecting parameter, receiving real-time tire pressure data from a nearby vehicle via Vehicle-to-Everything communication (V2X), determining a second tire pressure scheme based on the real-time tire pressure data, adjusting the first tire pressure scheme to the second tire pressure scheme, and broadcasting an effect of the second tire pressure scheme to the nearby vehicle.

A computer system and computer-implemented method for determining a control input for a vehicle are provided, the method comprising: acquiring, by processing circuitry of a computer system, operational information relating to a manoeuvre of the vehicle; determining, by the processing circuitry, a cost associated with energy efficiency of one or more motion support devices of the vehicle performing the manoeuvre; determining, by the processing circuitry, a cost associated with tyre wear of the vehicle performing the manoeuvre; and determining, by the processing circuitry, a control input such that a cumulative cost of energy efficiency and tyre wear is below a threshold.

A system for localizing an assembly line tool with respect to at least one axle of a vehicle located on an assembly line is provided. The assembly line has at least two dollies and at least one assembly line tool. The system obtains a sequence of dolly IDs according to an order of sequence of which the at least two dollies are moving along the assembly line, and associate each dolly ID in the obtained sequence of dolly IDs with a specific axle in a predetermined axle layout associated with the vehicle based on the order of sequence. The system obtains at least a first dolly ID of a first dolly, and determine a location of the assembly line tool with respect to a specific axle in the predetermined axle layout associated with the vehicle based on the obtained first dolly ID and the specific axle associated thereto.

Embodiments relate to systems and methods for receiving a route and a driving mode, retrieving from an external database an upcoming road condition and an upcoming weather condition in a trip on the route, and determining a tire pressure scheme based on the upcoming road condition and the upcoming weather condition, and sending a command to a tire pressure control apparatus to adjust a current tire pressure of the tire based on the tire pressure scheme. Adjusting the tire pressure comprises deflating the tire or inflating the tire via the tire pressure control apparatus.

The invention relates to a prompting method and device, a vehicle, a medium and a program product. The prompting method comprises the steps that tire pressure information of a tire is obtained; analyzing the tire sound signal acquired by the sound acquisition device, and determining tire noise information; and executing tire information prompt according to the tire noise information and the tire pressure information. Tire detection is performed in combination with the tire sound signal and the tire pressure information, so that the accuracy and reliability of tire detection are improved, and the accuracy of tire information prompt is improved.

The invention discloses a wireless relay method, system and equipment for commercial vehicle tire pressure monitoring and a medium, relates to the technical field of commercial vehicle tire pressure monitoring, and solves the problems of poor system adaptability and unreliable real-time alarm caused by the fact that existing commercial vehicle tire pressure monitoring needs trailer transformation and wireless transmission is easy to conflict. The method specifically comprises the steps that ACL connection is established between a tire pressure receiving node and a wireless relay node, and channel scheduling parameters and tire pressure sensor working parameters are issued to the wireless relay node; the wireless relay node sends a report request message to the tire pressure sensor on a specified channel according to a preset period; after each tire pressure sensor receives the message, reporting tire pressure monitoring data in the exclusive response time slot, and if the tire pressure sensor detects a tire burst early warning event, repeatedly reporting the tire pressure monitoring data in the tire burst reporting time slot; the wireless relay node packages the data and sends the data to a tire pressure receiving node for receiving and processing, and if it is judged that a tire burst early warning event exists, an alarm is given within 100 ms. The method is used for monitoring the tire pressure of the commercial vehicle.

A vehicle includes a mixing drum rotatably coupled to a chassis, a fill level sensor configured to provide a signal indicative of a fill level of a material within the mixing drum, an axle assembly including a first tractive element, a suspension actuator coupled to the axle assembly and configured to apply a biasing force that forces the first tractive element into engagement with a ground surface, a lift axle including a second tractive element, a lift actuator coupled to the lift axle, and a controller. The controller is configured to calculate a target weight to be supported by at least one of the first tractive element or the second tractive element based on the fill level of the material within the mixing drum and control the suspension actuator to vary the biasing force based on the target weight.

The invention relates to a vehicle static tire pressure monitoring method and device and a self-powered system thereof.The method comprises the steps that vehicle state information is obtained, and whether a vehicle enters a static state or not is judged according to the vehicle state information; after it is judged that the vehicle enters the static state, the tire pressure monitoring mode is switched to a static mode from a dynamic mode, tire pressure and temperature data are collected in the static mode, and the sampling frequency of the static mode is higher than that of the dynamic mode; energy support is provided for data acquisition in a static mode through a self-power supply system, and the self-power supply system at least partially converts mechanical energy generated during tire deformation into electric energy; according to the tire pressure and temperature data, the actual air leakage rate of the tire is determined through a temperature compensation algorithm; and triggering early warning information of a corresponding level according to the actual gas leakage rate.

An external TPMS sensor for heavy-duty trucks comprises a helical antenna and a 1225 cell, and is installed outside a tire of a vehicle; and system power consumption is reduced by increasing the communication rate of the TPMS sensor, and / or decreasing the sampling period, and / or decreasing the number of data frames transmitted every time, and / or decreasing RF output power, and / or disposing an LNA circuit at an input terminal of a corresponding receiver antenna. The requirement of the TPMS sensor for a long service life is met by reducing system power consumption; the helical antenna, the matching network, and the 5 dBm chip for outputting power are used to realize miniaturization of the TPMS sensor; and the 1225 cell is used, which, compared with traditional TPMS sensors, allows the diameter of the TPMS sensor to be reduced by about 8 mm and the weight of the TPMS sensor to be reduced by over ⅓, such that miniaturization of the TPMS sensor is further realized.

Provided is a method, etc., for estimating uneven tire wear. This tire state estimation method involves: obtaining an image which includes both ends of the tread of a target tire, and captures said tread from the front in a manner such that said tread is continuous in a prescribed direction; inputting the obtained image into a trained first machine learning model; and deriving an output from the trained first machine learning model. Therein, the output of the trained first machine learning model corresponds to the estimation results for the uneven wear of the target tire.

The invention relates to the technical field of vehicle control, and provides a vehicle tire pressure adjusting method and a vehicle. Vehicle running data and a road topographic image in front of the vehicle are obtained, so that the vehicle trapping risk of the vehicle is predicted, and vehicle trapping probability information of the vehicle is obtained; according to the method, the vehicle trapping risk of the vehicle can be predicted in advance, the accuracy of vehicle trapping risk prediction is ensured through environmental perception and operation data, and the vehicle trapping risk prediction accuracy is improved. The tire pressure adjusting quantity is determined in time according to the vehicle sinking probability information and the vehicle operation data, so that the tire pressure adjusting accuracy is ensured, the purpose of timely intervention before the vehicle sinking is achieved, the vehicle sinking caused by mismatching of the tire pressure under the complex road conditions such as sand and mud is avoided, the vehicle escaping capability is improved, and the vehicle safety is improved. And the trafficability of the vehicle under various complex road conditions is improved.

The invention relates to the technical field of automobile tire pressure sensors, and discloses an automobile tire pressure data analysis method which comprises the following steps: acquiring original automobile tire pressure data and parameter configuration information corresponding to the original automobile tire pressure data; analyzing the data area data according to the configuration area data to obtain level sample point segment data; determining a period deviation range and a pulse width deviation range of the automobile tire pressure data according to the parameter configuration information; filtering the level sample point segment data according to the period deviation range and the pulse width deviation range; determining target level sample point segment data from the filtered level sample point segment data according to a sampling baud rate and a first level jump moment of each frame of data of the filtered level sample point segment data; encoding the target level sample point segment data according to the data encoding format to obtain target data; and analyzing the target data to obtain automobile tire pressure data. In this way, the efficiency and reliability of function testing of the automobile tire pressure sensor are improved.

A rotary sealing assembly comprises a static sealing ring cover and a movable sealing ring cover, the static sealing ring cover is provided with an air inlet channel connected with an external air supply source, the movable sealing ring cover is provided with an air outlet channel connected with the interior of a tire, and a sealing assembly is arranged between the static sealing ring cover and the movable sealing ring cover. The sealing assembly is used for achieving airtight sealing of the joint of the static sealing ring cover and the movable sealing ring cover, the sealing assembly comprises a static sealing ring fixed to the static sealing ring cover and a movable sealing ring fixed to the movable sealing ring cover, and the static sealing ring and the movable sealing ring abut against each other and are in interference contact to achieve dynamic sealing. The sealing device has the beneficial effects that dynamic sealing is achieved through interference contact of the static sealing ring and the movable sealing ring, the airtight reliability in the rotating state is effectively improved, and unstable tire pressure caused by gas leakage is prevented.

The invention discloses a tire detection method and system, an electronic device and a storage medium. The tire detection method comprises the following steps: collecting measurement data of a tire pressure sensor; identifying a vehicle state using the measured data; adjusting the acquisition frequency of a tire pressure sensor and an awakening mechanism of a microcontroller according to the vehicle state; acquiring tire pressure data by using a tire pressure sensor under the acquisition frequency; and under the awakening mechanism, awakening the microcontroller, and sending the tire pressure data to a receiving end according to a preset sending frequency corresponding to the vehicle state by utilizing the microcontroller. According to the technical scheme, the technical problem that in the prior art, a tire pressure sensor depends on periodic sampling and fixed-frequency communication, and consequently a large amount of invalid power consumption is generated can be solved.

The invention discloses a tire pressure monitoring device and method based on a passive RFID temperature tag. The tire pressure monitoring device comprises the passive RFID temperature tag, a reader-writer module and a data processing unit. And the passive RFID temperature measurement tag is fixed on the inner wall of the tire, receives the radio frequency energy sent by the reader-writer module, and collects the internal temperature of the tire in real time. The reader-writer module is fixed near a hub of a vehicle, performs polling communication with the passive RFID temperature measurement tag through a multi-band radio frequency technology, and transmits tire internal temperature data returned by the passive RFID temperature measurement tag to the data processing unit. And the data processing unit indirectly derives the tire pressure by utilizing a thermodynamic equation and combining parameters such as tire structure change, vehicle speed and load, so that high-precision and low-power-consumption tire pressure monitoring is realized. According to the method, the tire structure does not need to be damaged, non-contact pressure estimation and dynamic modeling can be achieved, and the method has the advantages of being simple in structure, high in reliability, wide in applicability and the like.

The invention discloses a vehicle tire pressure monitoring reminding method and related equipment, and relates to the field of vehicle early warning, the method comprises the following steps: when a tire pressure sensor detects that a tire pressure change value of a target vehicle is greater than a tire pressure change threshold value, the tire pressure sensor sends a tire pressure sensor signal containing a preset wake-up identifier to tire pressure receiving equipment; the tire pressure receiving equipment verifies the sensor identifier to generate a verification result; the tire pressure processing equipment analyzes the tire pressure data of the target vehicle at the current moment, and when the current tire pressure state is an abnormal state, the tire pressure processing equipment marks a tire pressure sensor signal as an abnormal state signal and sends the abnormal state signal to the vehicle-mounted communication equipment; the vehicle-mounted communication equipment sends an abnormal state signal to the cloud platform; and based on the abnormal state signal and the current state parameter of the target vehicle, the cloud platform generates target alarm information and sends the target alarm information to the mobile terminal.

The invention relates to a tire pressure information data transmission method. The method comprises the following steps: S1, a relay receiver receives tire pressure data sent by a plurality of tire pressure sensors through a wireless channel in a receiving time period; s2, the relay receiver transmits the comprehensive tire pressure information to a tire pressure host through a wired data connection line in the sending time period; s3, the tire pressure host selects a precise display mode or a fuzzy feedback mode to output tire pressure information according to the vehicle state; wherein in the precise display mode, precise pressure values and temperature data of all tires are displayed through a vehicle-mounted display screen preset on a vehicle; and in the fuzzy feedback mode, the tire pressure state information is transmitted through the combination of a tactile feedback device and an LED indicating lamp which are preset on the vehicle. The anti-interference performance and timeliness of tire pressure data transmission can be greatly improved.

Methods, apparatuses, systems, and computer program products for wheel theft detection and notification using a tire pressure monitoring system (TPMS) are disclosed. In a particular embodiment, wheel theft detection and notification using a TPMS includes monitoring, by an electronic control unit (ECU) of a vehicle, one or more parameters associated with a tire monitoring sensor (TMS) coupled to a wheel assembly of the vehicle. In this embodiment, the ECU determines, based on the monitored one or more parameters, that the wheel assembly is in a compromised state associated with the wheel assembly being dislocated from the vehicle or in danger of being dislocated from the vehicle. In response to determining that the wheel assembly is in the compromised state, the ECU triggers an alarm of a vehicle security system.

An embodiment relates to a systems comprising a tire pressure control apparatus, a processor comprising a monitoring module and a tire pressure module, and a memory coupled to the processor, the memory comprising instructions executable by the processor to receive a route, determine an optimal tire pressure for a tire of a vehicle based on at least one of a terrain and a weather condition prior to a trip along the route, determine a tire pressure scheme prior to the trip based on the route, wherein the tire pressure scheme comprises a first tire pressure configuration for a first segment of the trip and a second tire pressure configuration for a second segment of the trip, identify a location along the route for adjusting a current tire pressure based on the tire pressure scheme, and communicate a command to the tire pressure control apparatus for adjusting the current tire pressure to the first tire pressure configuration for the first segment of the trip and the second tire pressure configuration for the second segment of the trip.

A smart battery box is provided that includes a battery for selectively powering a trailer main harness coupled to an ABS controller. The smart battery box includes a controller configured to respond to a command to control a switch to close to power the ABS controller through the battery. In this fashion, the ABS controller may be tested through the smart battery box while the trailer is disconnected from a tractor.

Aiming at long-time snowfields, especially radial tires, the utility model provides a winter and summer dual-purpose nail-free snow tire pattern suitable for ice and snow pavements, which comprises a tread pattern, the tread pattern comprises pattern blocks arranged along the circumferential direction of the tire and pattern grooves arranged along the circumferential direction of the tire, a pattern groove I is arranged at the center of the width direction of the tire, and a pattern groove II is arranged at the center of the width direction of the tire. A pattern block I, a pattern groove II, a pattern block II, a pattern groove III, a pattern block III, a pattern groove IV, a pattern block IV, a pattern groove V and a pattern block V are sequentially arranged from the pattern groove I to the left and the pattern groove II to the right, and the width of the pattern groove I, the width of the pattern groove III and the width of the pattern groove V are smaller than the width of the pattern groove II and the width of the pattern groove IV. The requirements for ice and snow braking performance and handling stability in winter are met preferentially, the requirement for wear resistance in summer is met, and the tedious tire changing link is avoided.

Embodiments relate to systems and methods for receiving a location for a destination, determining a current location, estimating a tire-wear status of a tire, determining an optimal tire pressure of the tire, recommending a route from the current location to the destination based on the optimal tire pressure, determining a tire pressure scheme based on the optimal tire pressure and the route, and communicating a command to a tire pressure control apparatus for adjustment of a current tire pressure of the tire based on the tire pressure scheme.

The invention discloses a vehicle tire pressure control method and device, a vehicle, a storage medium and a product, and relates to the technical field of vehicle tire pressure control, the method comprises the following steps: obtaining environment sensing data, and determining the environment temperature of the environment where the vehicle is located based on the environment sensing data; a reference tire pressure value, a reference temperature and a thermal expansion coefficient of a tire of the vehicle are obtained, and the reference tire pressure value is a safe tire pressure value of the vehicle at the reference temperature; correcting the reference tire pressure value based on the environment temperature, the thermal expansion coefficient and the reference temperature to obtain a target tire pressure value; and adjusting the tire pressure of the vehicle based on the target tire pressure value until the tire pressure of the vehicle reaches the target tire pressure value. According to the method, the vehicle tire pressure can be dynamically adjusted, so that the driving safety is improved.